sediment
柯林斯词典
1. N-VAR Sediment is solid material that settles at the bottom of a liquid, especially earth and pieces of rock that have been carried along and then left somewhere by water, ice, or wind. 沉淀物; 沉渣
Many organisms that die in the sea are soon buried by sediment. 许多在海里死亡的生物很快便被沉淀物掩埋。
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sediment /ˈsɛdɪmənt/ (sediments)
剑桥词典
- [ 可数名词：有复数形式的名词 or 不可数或单数名词：没有复数形式的名词 ]
a soft substance that is like a wet powder and consists of very small pieces of a solid material that have fallen to the bottom of a liquid
沉淀物，沉渣
There was a brown sediment in the bottom of the bottle . 瓶子底部有褐色的沉淀物。
sediments [ 名词的复数形式 ]
sand , stones , etc. that slowly form a layer of rock
沉积物（最终形成一层岩石的砂子、石头等）
It is hoped that the oil slick will sink to the seabed where it would be covered within a few years by sediments and eventually decompose . 人们希望浮油会沉到海底，并且在数年内被沉积物覆盖，最终分解。 返回 sediment