名词
中文翻译：谷壳
同义词：
['straw', 'chaffle']
例句：
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1. The farmer used to feed the pigs with the chaff from the wheat field.
农民过去用小麦田的麦秆喂猪。
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2. The old man was busy gathering the chaff for his firewood.
老人忙着收集麦秆准备他的木柴。
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3. The farmer's wife made a big pile of chaff in the yard for the chickens.
农场主的妻子在院子里堆了一大堆麦秆给鸡吃。