A perforation, as in a punched card or paper tape.
在穿孔卡片或纸带上穿孔的一种动作。
The boy punched holes in the paper so it would fit in his notebook.
那男孩在纸上打洞以便装在笔记本上。
Lines of holes were punched out to show where to tear the paper.
纸上打了几排洞表明从那里将纸撕开。
Lines of holes were punched out to show where to tear the paper.
纸上打了几排洞表明从那里将纸撕开。
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