n.淤泥
v.(使)淤塞
A concrete wall is built to stop silt from leaking to the conservation land. 一道水泥墻修筑起來，用以防止泥沙流進(jìn)保留地。
The sand have silt up the mouth of the river. 泥沙已把河口堵住了。
淤積,淤塞,充填
n.泥砂巖(粉砂巖)
