名词
中文翻译：腹部
同义词：
['stomach', 'abdomen', 'groin']
例句：
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1. He sat down on the couch and felt his belly grow bigger.
他坐在沙发上，感觉到他的肚子变大了。
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2. She ate a lot of pizza for lunch, feeling her belly grow full.
她午餐吃了很多比萨，感觉她的肚子变圆了。
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3. The baby's belly was swollen with the growth of the fetus.
婴儿的肚子因为胎儿的增长而膨胀。