动词短语
中文翻译：踩水
同义词：
['swim', 'float', 'paddle', 'swim strokes']
例句：
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1. He treaded water for hoursbefore he could finally get a breath offresh air.
他踩水好几个小时，才终于能呼吸到新鲜空气。
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2. Theswimmer swam with the currentto reach the other side of the pool.
这位游泳者顺着水流游到了泳池的另一边。
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3. She paddled her canoeacross the river to reach the other side.
她划着独木舟过了河去到对岸。