| 释义 |
ce.ment BUILDING MATERIALsI5mentn [U]a grey powder which is mixed with water and sand to make MORTAR or with water, sand and small stones to make concrete水泥a bag of cement一包水泥a cement factory水泥厂A cement mixer is a machine which has a large cylindrical container which turns round and round, in which cement, water and small stones are mixed to make concrete.水泥搅拌机Something set in cement is fixed and cannot be changed.固定的，不可更改的These are just proposals, they aren't set in cement.这些只是建议而已，并不是不可更改的。
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