英语词汇“natural river course”的翻译、意思、用法、释义-英汉汉英双解词典

单词	natural river course
释义	natural river course 基本例句天然河道 The deposition of sediment in our natural stream channels has greatly aggravated floodwater damages.泥沙淤积在天然河道，已大大加剧了洪水的危害。
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