名词短语
中文翻译：手动控制的工作
同义词：
['manual labor', 'manual operation', 'manual control']
例句：
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1. The factory usesa lot of manual labor to produce its products.
这家工厂大量使用手工劳动来生产产品。
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2. Manual labor is often more physically demanding than machine-operated tasks.
手工劳动往往比机器操作任务更体力上要求高。
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3. In the past, manual labor was common in many industries.
过去，手工劳动在许多行业都很普遍。