名词
中文翻译：吮吸动作
同义词：
['sucking motion', 'sucking movement']
例句：
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1. Thebaby was sucking on the bottle withgreat enthusiasm.
宝宝非常热情地吮吸着奶瓶。
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2. The dog was sucking ona bone in the park.
狗在公园里吮吸着骨头。
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3. The childwas sucking his thumbwhile watching TV.
孩子看电视时吮吸着自己的拇指。