名词
中文翻译：瀑布
同义词：
['fall', 'descent', 'stream', 'waterfall例句：1. The cascade of leaves is a beautiful sight tobehold.（树叶的级联是一道美丽的风景。）']
例句：
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1. The cascade of leaves is a beautiful sight tobehold.
树叶的级联是一道美丽的风景。
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2. The river cascades overthe rocks in a gentle flow.
河流在岩石上缓缓流过。
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3. Thecascade of memories frommy childhood flooded back tome.
童年的记忆如瀑布般涌回心头。