silt

淤泥、泥沙

Thick silt from the flood covered the farmland near the river.

洪水带来的厚厚淤泥覆盖了河边的农田。

淤塞、堵塞常与 up 连用

The harbor had silted over the years and needed dredging.

这座港口多年来逐渐淤塞，必须进行疏浚。

淤积、淤塞

The old canal silted up and can no longer carry boats.

那条旧运河已经淤塞，再也无法通船。