名词
中文翻译：收割机
同义词：
['harvester', 'reaper']
例句：
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1. The farmer used a reaper-thresher to cut the wheat.
农民使用收割机来割小麦。
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2. The reaper-thresher has become an essential tool in modern agriculture.
收割机已成为现代农业中必不可少的工具。
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3. The reaper-thresher is responsible for separating the grain from the chaff.
收割机负责将谷物与糠分开。