n.埋葬虫
Without huge investment the reservoirs will silt up.
如果没有巨额投资的话，水库肯定会淤塞。
The water contains fine silt.
水里含有细泥沙.
During the annual floods the river deposits its silt on the fields.
每年河水泛滥时都会在田野上沉积一层淤泥.
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