名词
中文翻译：时钟上的穿孔同义词
同义词：
['time-punch', 'clock-punch']
例句：
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1. The clock punch is a small device that can be used to mark the time on a clock.
时钟穿孔是一种可以用于在钟表上标记时间的小型装置。
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2. He used his pocket watch as a clock punch to mark the time for his presentation.
他用他的怀表作为时钟穿孔，为他的演讲计时。
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3. The clock punch was a popular tool among children who enjoyed playing with their parents' watches.
时钟穿孔是孩子们喜欢玩的一种工具，他们喜欢用他们的父母的手表来玩耍。