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. 沉澱物; 沉渣
Many organisms that die in the sea are soon buried by sediment. 許多在海裡死亡的生物很快便被沉澱物掩埋。
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sediment /ˈsɛdɪmənt/ (sediments)
剑桥词典
- [ 可數名詞：有複數形式的名詞 or 不可數或單數名詞：沒有複數形式的名詞 ]
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
沉澱物，沉渣
There was a brown sediment in the bottom of the bottle . 瓶子底部有褐色的沉澱物。
sediments [ 名詞的複數形式 ]
sand , stones , etc. that slowly form a layer of rock
沉積物（最終形成一層巖石的砂子、石頭等）
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 . 人們希望浮油會沉到海底，竝且在數年內被沉積物覆蓋，最終分解。 返回 sediment