名词
中文翻译：水蚤
同义词：
['water beetle', 'water bug']
例句：
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1.The water fleas were swimming around in the pool.
水蚤们在游泳池里游来游去。
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2.The water fleas were a common sight in the park.
在公园里，水蚤很常见。
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3.The water fleas are a nuisance to humans and can cause skin irritation.
水蚤对人类来说是麻烦，会引起皮肤刺激。