名词
中文翻译：打字机上的打孔器
同义词：
['punch', 'punch card', 'punching machine']
例句：
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1.The typewriter is used to type the text on a piece of paper.
打字机用来在纸上打字。
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2.The punch card was designed to store and retrieve information quickly.
打孔卡被设计用来快速存储和检索信息。
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3.The punching machine was used to create holes in the paper for the typewriter.
打孔机被用来在纸张上打孔，以便打字机使用。