名词
中文翻译：跳蚤
同义词：
['bug', 'louse', 'tick']
例句：
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1.The dog was scratching at the door to get some attention.
那只狗在门上抓挠以引起注意。
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2.The farmer had to treat his farm animals for ticks.
那位农民不得不治疗他的农场动物的跳蚤。
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3.The kids were playing with their new toys, but one of them got a skeptical look from me when I saw it was a bug.
孩子们正在玩他们的新玩具，但当我看到它是一只跳蚤时，他们中的一个表现出怀疑的眼神。