| Subject | English | Chinese |
| bridge. | Acol four no trump opening bid | 埃珂四无将开叫 |
| gen. | as two is to four, so three is to six | 三之于六,正像二之于四 |
| tech. | basic four color system | 四原色法 |
| tech. | basic four colour system | 四原色法 |
| sport., med. | basic four food groups | 四类基本食物 |
| sport. | best four | 参加半决赛的前四名 |
| sport. | best four | 半决赛运动员 |
| bowl. | big four | 大四 |
| bowl. | big four | "大四" |
| bowl. | big four | 四大球 |
| bowl. | big four | 四大球 |
| gen. | Big Four | 大四星最早发现的四颗小行星:谷、智、婚、灶四神星 |
| securit. | Big Four | 四大会计师事务所美 |
| securit. | Big Four | 四大股票交易行日 |
| securit. | Big Four | 四大银行英 |
| bowl. | big four | "大耳朵" |
| bowl. | big four | 大耳朵 |
| bridge. | blue team four club four diamond convention | 蓝梅花四梅花方块约定叫 |
| gen. | cancel four out of that fraction | 用四来约这个分数 |
| sport. | championship won four times in succession | 四连冠 |
| sport. | China bagged one gold, two silver and four bronze medals | 中国选手共获得 1 枚金牌、2 枚银牌和 4 枚铜牌 |
| ecol. | circular flow in four sections of resource economy | 四部门经济循环流动 |
| gen. | coach-and-four | 四驾马车 |
| biol. | Colorado four-o'clock | 多花紫茉莉 (Mirabilis multi flora A. Gray，紫茉莉科) |
| biol. | common four-o'lock | 紫茉莉 (Mirabilis jalapa L.，紫茉莉科) |
| bridge. | Culbertson four-five no trump | 克柏森四五无将问叫 |
| bridge. | declarative-interrogative four no trump | 陈述-询问四无将 |
| bridge. | defense to opening four-bid | 防守四花色开叫 |
| desert. | desert four o'clock | 沙漠四点钟 |
| desert. | desert four o'clock | 多花紫茉莉 |
| tech. | differential four-channel gamma-ray spectrometer | 差动四通道伽马射线能谱仪 |
| tech. | double manifold with four plus four connectors | 四加四的双向管道连接器 |
| avia. | electrical four-pole swing | 电动四柱秋千 |
| tech. | equivalent twenty-four hours pulse rectify | 等效24 小时脉波整流 |
| gen. | every four days | 每隔一〔二，三〕天〔周，月，年〕 (weeks, months, years) |
| tech. | exterminate the four pests | 除四害 |
| gen. | figure-four | 4字形的 |
| tech. | film dielectric four-gang variable capacitor | 薄膜介质四连可变电容器 |
| tech. | film dielectrical four-gang variable capacitor | 薄膜介质四连可变电容器 |
| avia. | flat-four engine | 四缸卧式发动机 |
| tech. | flat-four engine | 卧式四缸发动机 |
| avia. | flat four engine | 卧式四缸发动机 |
| avia. | fluid four | 四机流动队形 |
| tech. | force-four wave | 四级浪 |
| tech. | forty-four degree angle branch | 四十五度支管 |
| tech. | forty-four degree bend | 四十五度弯头 |
| tech. | forty-four degree lateral | 四十五度 Y 形管 |
| tech. | forty-four degree miter joint | 四十五度削接头 |
| gen. | forty-four repeater | 四十四增音器 |
| gen. | four-acceleration | 四维加速度 |
| bridge. | four aces point-count | 四 A 队记点法 |
| bridge. | four aces system | 四 A 队叫牌法 |
| bridge. | four aces team | 四 A 队 |
| bot. | four angled bean | 四棱豆 Psophocarpus tetragonolobus |
| gen. | four-ball | 四球 |
| avia. | four-ball test | 四球试验 |
| desert. | four-banded sandgrouse | 四斑沙鸡 |
| avia. | four bank eight | 四点转弯8字飞行 (8字特技圆圈的外侧部分，不是圆形，而是两个45°转弯加一段短距直线飞行) |
| gen. | four-bar | 四连杆 |
| gen. | four-bar | 四杆 |
| CNC | four-bar motion | 四杆运动 |
| gen. | four-barrel | 四腔式 |
| bowl. | four basic lines in bowling | 保龄球中的四条基本线 |
| gen. | four-bearing | 四支点的如曲轴 |
| gen. | four-bearing | 四轴承的 |
| bridge. | four-bid | 四副水平叫牌 |
| gen. | four-bit | 四位组 |
| gen. | four-bit | 四位字节 |
| gen. | four-blade | 四叶片的 |
| gen. | four-blade | 四翼的 |
| shipb. | four-blade propeller | 四翼螺旋桨 |
| gen. | four-bladed | 四叶片的 |
| gen. | four-bladed | 四翼的 |
| sport. | four-by-four | 四轮驱动车 |
| gen. | four-by-four vehicle | 双轴全轮驱动车辆 |
| gen. | four-by-two | 双轴两轮驱动车辆 |
| biol. | four-calyx actinidia | 四萼猕猴桃 (Actinidia tetramer a Maxim.，猕猴桃科) |
| bridge. | four-card bid | 四张叫牌 |
| bridge. | four-card majors | 四张高花开叫 |
| bridge. | four-card suits bids | 四张套叫牌 |
| gen. | four-centre | 四中心的 |
| gen. | four-centred | 四中心的 |
| sport. | four championships on the run | 四连冠 |
| gen. | four-channel | 四路 |
| gen. | four-channel | 四通道 |
| bridge. | four club blackwood | 四梅花黑木问叫 |
| bridge. | four club convention | 四梅花约定叫 |
| gen. | four-color | 四色版印刷的 |
| gen. | four-color | 四色的 |
| biol. | four-color wandering jew zebrina | 四色吊竹梅 (Zebrina pendula var. quadricolor Bailey，鸭跖草科) |
| desert. | four-colored bushshrike | 四色丛贝鸟 |
| gen. | four-colour | 四色版印刷的 |
| gen. | four-colour | 四色的 |
| multimed. | four colour map theorem | 四色映射理论 |
| multimed. | four colour process | 四色法 |
| gen. | four-column | 四柱式的 |
| gen. | four comers | 全部范围 |
| gen. | four comers | 方形物的四角 |
| gen. | four comers | 交叉〔十字〕路口 |
| gen. | four-compartment | 四室式的 |
| gen. | four-component | 四组分〔分量〕的 |
| gen. | four-component | 四元的 |
| sport. | four consecutive championships | 四连冠 |
| gen. | four-cord | 四股的 |
| gen. | four-core | 四芯的 |
| gen. | four-cornered | 四方的 |
| gen. | four-cornered | 有四人参加的 |
| gen. | four-cornered | 方形的 |
| gen. | four-cornered | 有四个角落的 |
| sport. | four corners | 四角游戏 |
| gen. | four-coupled | 有两对轮子的 |
| gen. | four-course | 农作物四年四区轮作的 |
| gen. | four-course | 四航向的 |
| gen. | four-current | 四维流矢量 |
| gen. | four-current | 四元电流 |
| gen. | four-cycle | 四冲程行程循环的 |
| nautic., tech. | four-cycle period | 四冲程循环周期 |
| gen. | four-cylinder | 四汽缸的 |
| shipb. | four-cylinder steering gear | 四缸舵机 |
| nautic., tech. | four-cylinder triple expansion engine | 四冲程三胀#蒸汽机 |
| refrig. | four cylinder V-type external drive compressors | 四缸 V 型外驱动压缩机 |
| racing | four cylinders | 四缸 |
| bridge. | four-deal bridge | 芝加哥桥牌 |
| bridge. | four-deal bridge | 四副［轮］式桥牌 |
| gen. | four-decker | 四层的 |
| bridge. | four diamond opening transfer | 四方块转移性开叫 |
| gen. | four-digit | 四位的 |
| avia. | four dimension long, lat, alt, time | 四维经度，纬度，高度，时间 |
| gen. | four-dimensional | 四维〔度,次元〕的 |
| gen. | four-dimensioned | 四次的 |
| gen. | four-door | 四门的 |
| gen. | four-drill | 四凿岩机的 |
| gen. | four-drill | 四钻机的 |
| gen. | four-drum | 四卷筒的 |
| gen. | four-drum | 四滚筒的 |
| gen. | four-effect | 四效的 |
| gen. | four-electrode | 四极的 |
| gen. | four-element | 四元素的 |
| taekwondo. | four elements of taekwondo | 对练、套路、自卫、击打测验跆拳道四要素 |
| gen. | four-engine | 四发动机的 |
| gen. | four-eyed | 四眼的 |
| gen. | four-eyes | "四眼"戴眼镜的人 |
| gen. | four-eyes | 四眼鱼 |
| gen. | four-factor | 四系数的 |
| gen. | four-factor | 四因子的 |
| gen. | four-feed | 四路进给〔给油〕的 |
| gen. | four-figure | 四位数的 |
| gen. | four-fingered | 四指的 |
| sport., med. | four finger-pushing manipulation | 四指推法 |
| gen. | four-finned | 装有十字形尾翼的 |
| bridge. | four-five no trump convention | 四五无将约定叫 |
| plast.surg. | four-flap technique | 四瓣法常指四瓣法 Z 改形术 |
| shipb. | four-fluke anchor | 四爪锚 |
| gen. | four-flush | 吹牛 |
| gen. | four-flush | 虚张声势 |
| gen. | four-flute | 四槽的 |
| gen. | four-footed | 四足的 |
| biol. | four-footed butterflies | 峡蝶科 (Nymphalidae) |
| biol. | four-footed butterflies | 蛱蝶科 (复, Nymphalidae) |
| gen. | four-force | 四维力矢 |
| gen. | four-frequency | 四频率的 |
| gen. | four-function | 四功能的 |
| gen. | four fundamental operations | 四则 |
| gen. | four-furrow plough | 四铧犁 |
| gen. | four-gap | 四隙的 |
| gen. | four-gradient | 四维梯度 |
| gen. | four-groove | 四槽的 |
| gen. | four-group | 四群 |
| gen. | four-gun | 四枪的 |
| gen. | four-handed | 游戏四人玩的 |
| gen. | four-handed | 二人合奏的 |
| sport. | four-handed | 4 人玩的游戏 |
| gen. | four-handed | 有四只手的 |
| sport. | four-handed game | 双打比赛 |
| gen. | four-head | 四头的 |
| shipb. | four-headed capstan | 四卷筒绞盘 |
| sport., med. | four-headed thigh | 股四头肌 |
| gen. | four-hit | 四次击球 |
| desert. | four-horned antelope chousingha | 四角羚 |
| bridge. | four horsemen | 四骑师队 |
| gen. | four-in-hand | 四马拉的 |
| gen. | four-in-hand | 活结领带 |
| gen. | four-in-hand | 一人驾驭四马马车地 |
| gen. | four-in-hand | 一人驾驭的四马马车 |
| gen. | four-in-one | 四合一 |
| gen. | four-jaw | 四爪的 |
| avia. | four-jet aircraft | 四喷气发动机飞机 |
| gen. | four-lane | 四车道的 |
| gen. | four-layer | 四层的 |
| gen. | four-leaf | 四叶的 |
| gen. | four-leaf | 四页的 |
| biol. | four-leaf kidney vetch | 四叶绒毛花 (Anthyllis tetraphylla (Thunb.) Fisch.，豆科) |
| biol. | four-leaf ladybell | 四叶沙参 (Adenothora tetraphylla (Thunb.) Fisch.，桔梗科) |
| biol. | four-leaf oxalis | 四叶酢浆草 (Oxalis tetraphylla Cav.，酢浆草科) |
| gen. | four-leaved | 四瓣的 |
| gen. | four-leaved | 四叶的 |
| biol. | four-leaved all-seed | 四叶多荚草 (Polycarpon tetraphyllum Linn.，石竹科) |
| gen. | four-leg | 四脚〔足，钩〕的 |
| gen. | four-legged | 四脚〔足〕的 |
| gen. | four-lens | 四合透镜 |
| gen. | four-letter | 下流的 |
| gen. | four-letter | 黄色的 |
| gen. | four-letter | 庸俗的 |
| gen. | four-level | 四能级的 |
| gen. | four-level | 四层的 |
| sport., psychol. | four levels of motor skills | 运动技能四级水平 |
| gen. | four-light | 四窗的 |
| gen. | four-limbed | 四芯柱的 |
| gen. | four-line | 四线〔列〕的 |
| gen. | four-lined | 四线的 |
| gen. | four-link | 四连杆 |
| gen. | four-lipped | 四凸耳的 |
| luge. | four-man bob | 四人雪橇车 |
| sport. | four-man box | 4人联防1人紧逼 |
| gen. | four-masted | 四桅的 |
| shipb. | four-masted ship | 四桅帆船 |
| gen. | four-matrix | 四维矩阵 |
| gen. | four-membered | 四元的 |
| gen. | four millionths of an inch thick | 百万分之四英寸厚 |
| gen. | four-momentum | 能动量四矢 |
| gen. | four-momentum | 能量-动量四矢量 |
| gen. | four-momentum | 四维动量 |
| gen. | four-moulter | 四眠蚕 |
| desert. | four-nerve daisy | 多茎四脉菊 (奇瓦瓦沙漠) |
| sport. | four-net thouk ball game | 4 网巧固球运动 (Tchoukball) |
| bridge. | four no trump | 四无将 |
| bridge. | four no trump convention | 四无将约定叫 |
| bridge. | four no trump opening | 四无将开叫 |
| bridge. | four no trump opening preemptive | 四无将先发制人叫牌 |
| bridge. | four no trump opening preemptive | 四无将关煞性开叫 |
| bridge. | four no trump overbid | 四无将争叫 |
| bridge. | four no trump overcall | 四无将争叫 |
| gen. | four-node | 四波节 |
| desert. | four o' clock | 紫茉莉 |
| gen. | four-o'clock | 紫茉莉 |
| biol. | four-o'clock | 紫茉莉 (Mirabilis jalapa L.) |
| biol. | four-o'clock | 紫茉莉属 (Mirabilis L.，紫茉莉科) |
| gen. | four-o'clock | 食蜜鸟 |
| desert. | four o'clock | 紫茉莉 |
| gen. | Four-o'clock | 紫茉莉属 |
| biol. | four-o'clock family | 紫茉莉科 (Nyctaginaceae) |
| bridge. | four-odd | 四副水平 |
| bridge. | four of a suit opening | 四副花色开叫 |
| gen. | four operations | 加减乘除 |
| gen. | four operations | 四则运算 |
| gen. | four over five | 四上五下 |
| antenn. | four-over-four array | 二排四层振子〔八振子〕天线阵 |
| fishery | four panels trawl | 四网板拖网 |
| gen. | four-passenger | 四乘客的 |
| gen. | four-passenger | 四座的 |
| biol. | four-patched stink bug | 四缀斑蝽 (Urochela quadrinotata Reuter，蝽科) |
| gen. | four-paw | 四爪的 |
| gen. | four-pen | 四笔的 |
| sport. | four-person relay | 现代冬季两项4人接力赛 |
| gen. | four-phase | 四相的 |
| gen. | four-pi | 四 π |
| gen. | four-piece | 四构件 |
| gen. | four-pin | 四销〔脚，管脚〕的 |
| refrig. | four-pipe air conditioning system | 四管式空调系统 |
| refrig. | four-pipe fan coil system | 四管制风机盘管系统 |
| refrig. | four-pipe system | 四管系统 |
| gen. | four-plex | 四单元住宅楼 |
| gen. | four-plus-one | 四加一 |
| gen. | four-ply | 四股〔层〕的 |
| gen. | four-point | 四点的 |
| gen. | four-point | 四刃的 |
| gen. | four-point | 四接点的 |
| gen. | four-point | 四探针的 |
| gen. | four point straight side single action press | 四点直柱单动曲柄压力机 |
| gen. | four-pointed | 四点的 |
| gen. | four-pole | 四端网络 |
| gen. | four-pole | 四极的 |
| refrig. | four-pole electric motor | 四极电动机 |
| avia. | four-port rotary valve | 四通旋转阀 |
| gen. | four-position | 四位置的 |
| gen. | four-post | 四柱式的 |
| gen. | four-post | 起落架四点式的 |
| avia. | four poster | 四喷管喷气式发动机 |
| gen. | four-poster | 有四根帐柱的卧床 |
| gen. | four-potential | 四势 |
| gen. | four-potential | 位势的四矢 |
| gen. | four-potential | 四元电位 |
| gen. | four-pounder | 四磅重的面包等 |
| gen. | four-pounder | 发射四磅炮弹的火炮 |
| gen. | four-probe | 四探针〔探头〕 |
| gen. | four-quad | 四象限的 |
| securit. | four-quadrant investing | 四象限投资 |
| judo. | four quarters hold | 四方固 |
| gen. | four-race | 四轨，跑，滚道的 |
| gen. | four-rake | 四耙式的 |
| gen. | four-ram | 四柱塞的 |
| gen. | four-range | 四量程的 |
| gen. | four-range | 四区间〔段，域〕的 |
| gen. | four-roll | 四辊式的 (er) |
| shipb. | four-roll bending machine | 四滚弯板机 |
| gen. | four-rope | 四绳的 |
| gen. | four-rotor | 四转子的 |
| gen. | four-row | 四行〔列，排〕的 |
| biol. | four-row barley | 四棱大麦 (Hordeum irregulare，禾本科) |
| biol. | four-row barley | 普通大麦 (Hordeum vulgar e L.，禾本科) |
| biol. | four-rowed barley | 四棱大麦 (Hordeum irregulare，禾本科) |
| biol. | four-rowed wild barley | 野生四棱大麦 (Hordeum pusillum，禾本科) |
| tradem. | Four Seasons | 四季酒店 (酒店沙特阿拉伯王子阿齐兹1996年买下巴黎四季酒店之后，就强调巴黎四季酒店是全世界最棒的酒店。今年《机构投资人》杂志的评选证实了巴黎四季酒店的确是全球第一的酒店。) |
| gen. | four-seater | 四座位，式的 |
| gen. | four-seater | 四座小客车 |
| racing | four seats | 四座 |
| gen. | four-section | 四构件的 |
| gen. | four-section | 四段式的 |
| sport. | four semifinalists | 半决赛四强 |
| gen. | four-shaft | 四轴〔井,茎杆〕的 |
| gen. | four-sheet | 四张〔叶,片层〕的 |
| shipb. | four sided sail | 四边帆 |
| gen. | four-speed | 四速的 |
| gen. | four-spindle | 四轴的 |
| bridge. | four-spot | 四点 |
| biol. | four-spotted bean weevil | 四纹豆象 (Callosobruchus maculatus (Fabricius)，象甲科) |
| biol. | four spotted bean weevil | 四纹豆象 (Callosobruchus maculatus (Fabricius)) |
| biol. | four-spotted chysopa | 四星草蛉 (Chrysopa cognata Mac Lachlan，草蛉科) |
| biol. | four-spotted leaf beetle | 四星叶甲 (Monolepta hieroglyphica biarcuata Weise，叶甲科) |
| biol. | four-spotted leafhopper | 四星叶蝉 (Macrosteles quadrimaculatus (Matsumura)，叶蝉科) |
| biol. | four-spotted longicorn beetle | 四星天牛 (Stenygrinum quadrinotatum Bates，天牛科) |
| biol. | four-spotted melon leaf beetle | 甜瓜四星叶甲 (Palanloca quadriplagiata Baly，叶甲科) |
| biol. | four-spotted spider mite | 加拿大红叶螨四点蛛螨，Tetranychus canadensis McG.，蛛螨科 |
| biol. | four-spotted stink bug | 四星蝽 (Homalogonia obtusa Walker.，蝽科) |
| biol. | four-spotted tree cricket | 四点树蟀 (Oecanthus nigricornis quadripunctatus Beut.，树蟀科) |
| gen. | four squared is sixteen | 四自乘〔四的平方〕等于十六/ |
| gen. | four-stage | 四级的 |
| gen. | four-stand | 四机座的 |
| gen. | four-star | 优良的 |
| gen. | four-star | 四星级军衔的 |
| gen. | four-star | 极好的 |
| gen. | four-start | 四通的 |
| gen. | four-step | 四步的 |
| bowl. | four-step approach | 四步法 |
| bowl. | four-step approach | 四步法 |
| sport. | four steps of beam | 梯式横木 |
| sport. | four straight championships | 四连冠 |
| sport. | four straight wins | 四战四胜 |
| gen. | four-strand | 四股的 |
| gen. | four-strand | 四线的 |
| biol. | four striped chafer | 四纹金龟 (Popillia quadriguttata Fabricius，金龟科) |
| biol. | four-striped flower longicorn | 四纹花天牛 (Strangalia ochraceofasciata Motschulsky，天牛科) |
| desert. | four-striped grass mouse | 纹鼠 |
| gen. | four-striper | 海军上校 |
| gen. | four-stroke | 四冲程的发动机 |
| racing | four-stroke cycle | 四行程引擎 |
| avia. | four stroke cycle | 四冲程循环 |
| racing | four-stroke engine | 四冲程发动机 |
| avia. | four-stroke engine | 四冲程式发动机 |
| bridge. | four tables | 四桌桥牌 |
| gen. | four-tape | 四带 |
| gen. | four-tensor | 四元〔四维，宇宙〕张量 |
| gen. | four-terminal | 四通路的 |
| gen. | four-terminal | 四端网络的 |
| gen. | four-thread | 四股的 |
| bridge. | four-three-two -one | 四三二一计点法 |
| gen. | four-throw | 四弯曲柄 |
| gen. | four times as big as | 如同N的四倍那么大 (N) |
| gen. | four-tine | 四叉〔齿〕的 |
| desert. | four-toed hedgehog | 西非刺猬 (撒哈拉沙漠) |
| desert. | four-toed jerboa | 四趾跳鼠 (撒哈拉沙漠) |
| desert. | four-toed sengi | 四趾岩象鼩 |
| gen. | four-tone | 四音的 |
| gen. | four-track | 四声道〔迹〕的 |
| gen. | four-track | 四轨〔磁〕迹的 |
| gen. | four-track | 四线的 |
| gen. | four-tube | 四管的 |
| gen. | four-tyre | 四轮胎的 |
| gen. | four-unit | 四单元的 |
| gen. | four-valve | 四电子管的 |
| avia. | four-vector | 四维向量 |
| gen. | four-vector | 四元〔四维〕矢量 |
| gen. | four-velocity | 四维〔四元〕速度 |
| gen. | four vidicon camera | 四光导管彩色摄像机 |
| gen. | four-way | 由四人参加的 |
| gen. | four-way | 四通〔路，向〕的 |
| refrig. | four way branch | 四通管 |
| nautic., tech. | four way joint box | 四路联箱 |
| refrig. | four-way reversing solenoid valve | 四通换向电磁阀 |
| multimed. | four way speaker | 四路扬声器 |
| gen. | four weeks | 四周 |
| gen. | four-wheel | 四轮的 |
| gen. | four-wheel brake | 四轮制动汽车的 |
| avia. | four wheel brakes | 四轮制动器 |
| gen. | four-wheel drive | 四轮传动汽车的 |
| skateboard. | four wheel drive | 四轮驱动 |
| gen. | four-wheeled | 双轴的 |
| gen. | four-wheeled | 四轮的 |
| gen. | four wheeler | 四轮车 |
| gen. | four-wing | 十字形的 |
| gen. | four-wing | 四翼〔翅〕的 |
| geol. | four wing rotary bit | 十字形钻头 |
| multimed. | four-wire circuit | 四线电路 |
| gen. | four-word | 四字的 |
| securit. | four-year buying cycle 4 | 年购买周期 |
| gen. | fourth-four type repeater 4-4 | 型增音机 |
| gen. | from the four winds | 从四面八方 |
| racing | FWD； four wheel drive | 四轮驱动 |
| tech. | grade four discontinuity | 四级结构面 |
| tech. | grade four texture body | 四级结构体 |
| sport. | hit for four runs | paddleball 得四分的一击 |
| tech. | horizontally opposed flat-four engine | 水平对置式四缸发动机 |
| gen. | I'm sorry. I suppose there is a mistake indeed. I only stayed here for three nights, not four | 对不起，我想确实有个错误。我只住了三个晚上，不是四个 |
| gen. | in fours | 一柄四叶 |
| gen. | in fours | 每组 〔批〕四个 |
| sport. | In the relay race, the first three runners of the four-member team must pass the baton to the next runner | 接力赛跑时、由 4 名队员组成的接力队中的前3名运动员、必须把他们手中的棒交给下一名运动员 |
| sport. | last four | 取得最后阶段比赛权的四名选手 |
| sport. | last four | 参加半决赛的四名选手 |
| sport. | last four | 四强 |
| judo. | lateral four quarters holding | 侧四方制压 |
| judo. | longitudinal four quarters holding | 侧四方制压 |
| tech. | Lorentz four-vector | 四元矢量 |
| desert. | Mars four North-Polar Sand Sea | 火星北极四大沙海 (火星北极有四个大沙漠，面积分别为 11 万 km²、50 万 km²、47 万 km² 和 33 万 km²，合计达141万km²) |
| desert. | mountain four o'clock | 山地圆点 |
| desert. | mountain four o'clock | 山地四点钟 (奇瓦瓦沙漠) |
| desert. | mountain four o'clock | 长圆紫茉莉 |
| bridge. | natural four no trump | 自然四无将 |
| bridge. | Neapolitan four diamond convention | 那不勒斯四方块约定叫 |
| gen. | nitrogen forms about four fifths of the atmosphere | 氮约占大气的五分之四 |
| bridge. | Norman four no trump | 诺曼四无将约定叫 |
| gen. | on all fours | 完全吻合的 |
| gen. | on all fours | 整齐 |
| gen. | on all fours | 匍匐 |
| gen. | on all fours | 完全一致的 |
| gen. | on all fours | 完全相似的 |
| gen. | on all fours | 爬着的 |
| sport. | one-four man-for-man offence | 运用 1-4破盯人进攻法 |
| gen. | one-out-of-four | 四中取一的 |
| tech. | plane four bar mechanism | 平面四杆机构 |
| sport. | plus fours | 灯笼裤 |
| sport. | plus fours | 宽大的运动裤 |
| bridge. | quantitative four no trump | 示量性四无将 |
| nautic., tech. | reduction gear of combined output of the four-engines | 四机轴并车减速齿轮箱 |
| tech. | reversing four way valve | 四通回动阀 |
| securit. | rolling four-quarter dividends | 四个季度的滚动股息 |
| shipb. | running test and loading tests for four ton provision crane | 四吨食物吊车运转和吊重试验 |
| gen. | scatter... to the four winds | 浪费或抛弃某物 |
| gen. | scatter... to the four winds | 使四散消失 |
| tech. | self-lube four-bolt flange unit | 自润滑四螺栓方形法式轴承箱组 |
| tech. | simply supported on four sides | 四边简支 |
| tech. | single-lens four-channel multiband camera | 单镜头四通多谱段摄影机 |
| gen. | six and four make ten | 六加四等于十 |
| gen. | six and four makes ten | 六加四等于十 |
| tech. | six by four | 六轮载货车 |
| gen. | six-by-four | 有四个驱动轮的六轮卡车 |
| biol. | smaller four-spotted leafhopper | 稻小斑叶蝉 (Erythroneura limbata Matsumura，叶蝉科) |
| sport., med. | state four | 态4 (呼吸) |
| tech. | supported along four sides | 四边支承 (的) |
| tech. | supported on four sides | 四边支承的 |
| biol. | sweet four-o'lock | 长筒紫茉莉 (Mirabilis longiflora L.，紫茉莉科) |
| tech. | swing block four bar linkage | 摆杆四杆链系 |
| bridge. | team-of-four event | 四人队式比赛 |
| bridge. | team-of-four movement | 四人队式轮转赛 |
| gen. | the four comers | 全部范围 |
| gen. | the four comers | 十字路口 |
| gen. | the four comers of a document | 文件的内容范围 |
| gen. | the four comers of the earth | 天涯地角 |
| gen. | the four corners of the earth | 世界各地 |
| gen. | the four species | 四则加减乘除 |
| gen. | the number 1980 contains four digits | 1980是四位数 |
| gen. | the proportion of four to one | 四与一之比 4:1 |
| gen. | The town of Jingde, one of the four famous towns in ancient China, is famous for chinaware | 景德镇因瓷器而闻名，为中国古代四大名镇之一 |
| gen. | the tree measures four feet around | 这棵树树围四英尺 |
| tech. | the twenty-four solar terms | 二十四季节 |
| gen. | three-over-four | 三上四下的 |
| gen. | to four places of decimals | 到小数点后第四位如14.0718 |
| gen. | Today's average car contains more than 15, 000 separate, individual parts that must work together. These parts can group into four major categories: engine, body, chassis and electrical equipment | 现代汽车由超过15000个独立部分组成，各部分必须协同作用。主要包括4个功能部分:引擎，车身，底盘和电控 |
| tech. | tracery with four-leaf-shaped curves | 四叶窗花格 (哥特式的) |
| desert. | trailing four o' clock | 蔓生四点钟 (奇瓦瓦沙漠) |
| desert. | trailing four o'clock | 蔓生四点钟 |
| sport. | tug-of-war on fours | 民间体育大象拔河 |
| sport., folk. | tug-of-war on fours | 大象拔河 |
| gen. | two by four | 不足道的 |
| gen. | two by four | 小的 |
| tech. | two by four method 2 | 英寸 × 4 英寸木框架建造法应用2英寸 × 4 英寸木材建成木框架的施工法 |
| gen. | two goes into eight four times | 二除八得四 |
| gen. | two into eight goes four times | 二除八得四 |
| tech. | two-by-four | 二乘四英寸木枋 |
| gen. | two-by-four | 小的 |
| gen. | two-by-four | 微不足道的 |
| gen. | two-by-four | 2英寸〔英尺〕× 4 英寸〔英尺〕的 |
| tech. | two-by four method | 二比四板材建造法 |
| tech. | two-phase four-wire system | 两相四线制 |
| tech. | two-position four-way valve | 二位四通阀 |
| tech. | two-stage-four-yard marshalling station | 二级四场编组站【铁】 |
| tech. | two-stage-four-yard marshalling station | 单向混合式编组站【铁】 |
| tech. | two-stage-four-yard unidirectional combined marshalling station | 单向二级四场混合式编组站 |
| judo. | upper four quarters holding | 上四方固 |
| judo. | vertical four quarters holding | 纵四方固 |
| judo. | vertical four quarters holding | 骑态制压 |
| gen. | We have four shapes that are round, oval, square and rectangular | 我们有四种形状，包括圆形、椭圆形、正方形和长方形 |
| gen. | 1457 went into four figures | 1457是一个由四个数字组成的数 |
| gen. | 1457 went into four figures | 1457是一个四位数 |
| gen. | what two is to four, that is three to six | 二之于四犹如三之于六 |
| sport. | win by four points | 四分取胜 |
| gen. | within four walls | 在室内 |
| gen. | within the four comers of | M 不出M的范围 |
| gen. | within the four seas | 四海之内 |
| gen. | Would you please give me seven five-pound notes, four ten-pound notes and four ten-penny notes, and the rest in small change? | 请给我7张5英镑纸币，4张10英镑纸币，4个10便士硬币，剩下的要零票 |
| nautic., tech. | wrench four way | 四用扳手 |
