名词
中文翻译：停滞的水
同义词：
['stagnant water', 'stagnant pool']
例句：
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1.The river flowed slowly through the town, with slack water covering the ground.
这条河流缓慢地流过城镇，静止的水覆盖了地面。
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2.The lake was slack water, and the fish were not biting.
湖面静止，鱼儿不吃食。
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3. The slack water in the riverbed allowed the roots to grow deeper.
河床的静止水让根系生长得更深。