名词
中文翻译：水蛭
同义词：
['leech', 'water beetle']
例句：
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1.The crocodile was able to catch the crabad and eat it for dinner.
鳄鱼成功地抓住了水蛭，把它当作晚餐吃了。
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2. The crabad was a common sight in the river during the summer months.
在夏季，水蛭是河里常见的生物。
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3. The crocodile's sharp teeth were able to quickly ensnare the crabad before it could escape.
鳄鱼的锋利牙齿很快将水蛭困住，使其无法逃脱。