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gritstone ['grɪtstəun] n
gen. 砂岩
agric. 粗沙岩
archit. 砂岩
bridg.constr. 砂砾岩
eng.geol. 砂礫岩
mount. 粗砂岩
tech. 天然磨石; 砂石; 细砂岩; 天然砥石; 砂砾 (石)
gritstone
: 1 phrase in 1 subject
Ecology1