| 单词 | sediment |
| 释义 | sediment ['sed.ɪ.mənt] noun countable or uncountable ■a soft substance that is like a wet powder and consists of very small pieces of a solid material which 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 [plural] ■sand, stones, etc. that eventually form a layer of rock 沉积物（最终形成一层岩石的沙和石头等） •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，并且在数年后被沉积物覆盖，逐渐分解。 |
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