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| English | Chinese |
| The World Environment 1972 〜1992： Two Decades of Challenge | 《1972〜1992年间世界环境一挑战的20年》 (联合国环规划署为联合国环境与发展大会组织50位世界著名科学家集体编写的一份报告) |
| two-banded plover | 双斑行鸟 |
| two-banded plover | 双斑鸻 (南美洲沙漠) |
| two-dimensional form | 二维形态 |
| two-dimensional shape | 二维形状 |
| two-lined dragon | 双线双孔蜥 (澳大利亚沙漠) |
| two-row stonecrop | 假景天 |
| two-seeded milkvetch | 矮白黄芪 |
| two sided test | 双向检验 |
| two-stage least squares | 二阶最小平方 |
| two-stage sampling | 二阶抽样 |
| two-storied barchan | 双层新月形沙丘 (综合新月形沙丘的一种类型) |
| two-wing silverbell | 二翅银钟花 |