riverbed

['rivəbed]

n.河床

例句与用法：

Sediment deposited by flowing water, as in a riverbed, flood plain, or delta.

冲积层河床、洪水淹没的平原或三角洲中的流水淤积所产生的沉积层

There are many pebbles on the riverbed.

河床上有很多卵石。

详细释义：

n.

河床