名词
中文翻译：Unknown
同义词：
['punching', 'punching work', 'punching job']
例句：
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1. The punch work on the machine is very important.
机器上的打孔工作非常重要。
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2. They are doing a punching work for the factory.
他们在为工厂做打孔工作。
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3. Punching work is a skill that needs to be learned and practiced.
打孔工作是一项需要学习和练习的技能。