名词
中文翻译：沉积物
同义词：
['sediment', 'sedimentary layer例句：1. The river has carved a diluvial deposit of sand and gravel over the years.（多年来，河流在河床上雕刻出了一层沙砾沉积物。）']
例句：
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1. The river has carved a diluvial deposit of sand and gravel over the years.
多年来，河流在河床上雕刻出了一层沙砾沉积物。
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2.The geologist studied the diluvial deposits to understand how they formed.
地质学家研究沉积物以了解它们是如何形成的。
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3. The ancient city was buried under layers of diluvial deposits.
这个古城被层层的沉积物所埋藏。