sediments
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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