riverbed
/ˈɹɪv.ɚˌbɛd/ 名词 C2中文： 河床、河槽
- The path where a river runs, or where a river once ran; the bottom earthen part of a river, not including the riverbanks. · Near-synonyms: streambed, creekbed
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来自图书馆
By deliberately narrowing the river channel, the embankments cleverly increased the velocity of the water, thereby helping to scour the riverbed clean of remaining sediment.
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