名词
中文翻译：外壳
同义词：
['hull', 'husk', 'chaff', 'straw']
例句：
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1. The farmer had to remove the husks from the wheat before it could be harvested.
农民在收割前必须去除小麦的外壳。
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2. The corn was left in the field with its husks still on.
玉米留在田里，外壳还保留着。
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3. The grains were dried and then removed from their husks.
谷物被干燥并从外壳中取出。