perforate [sth]
及物用法，后接被穿孔的物体。
The machine perforates the paper with tiny holes.
机器在纸上打出小孔。
刺穿；穿透；刺穿；穿透。；在薄材料上打一排孔以便沿此线分离。；穿孔于；刺穿
to make a line of small holes in paper, cardboard, etc., so it can be torn apart at that line
刺穿；穿透。
To pierce; to penetrate.
在薄材料上打一排孔以便沿此线分离。
To make a line of holes in (a thin material) to allow separation at the line.
一般现在时
He perforates the paper.
他在纸上穿孔。
一般过去时
She perforated the card yesterday.
她昨天在卡片上打了孔。
现在完成时
They have perforated the metal sheet.
他们已经在金属板上打了孔。
规则动词，过去式和过去分词加-ed。
The machine can perforate paper quickly.
这台机器能快速地在纸上穿孔。
用法提示：perforate 用作及物动词，表示在纸上穿孔。
The bullet perforated the metal sheet.
子弹穿透了金属板。
用法提示：perforated 是过去式，表示刺穿、穿透。
He is perforating the leather belt to make holes.
他正在给皮带打孔。
用法提示：perforating 是现在分词，表示打孔的动作。
及物用法，后接被穿孔的物体。
The machine perforates the paper with tiny holes.
机器在纸上打出小孔。
不及物用法，表示穿透某物。
The bullet perforated through the metal plate.
子弹穿透了金属板。
被动语态，强调被穿孔的状态。
The documents are perforated for easy tearing.
文件上打了孔以便撕开。
grammar · medium
易错句子I need to make a perforate in the paper.
正确表达I need to make a perforation in the paper.
英语中"perforate"是动词，而名词形式是"perforation"。中文学习者常误将动词用作名词，应使用名词形式。
grammar · medium
易错句子The bullet perforated through the wall.
正确表达The bullet perforated the wall.
"perforate"本身已表示"穿过"，加"through"造成语义重复。应直接接宾语。
pierce通常指用尖锐物刺入并穿过，强调穿透的动作；perforate则强调制造孔洞（通常为多个或用于分离）。
puncture常指尖锐物造成的小孔，如轮胎漏气；perforate更常用于打一连串的孔（如邮票齿孔）。
Choose the next layer that will help you use perforate with more confidence.
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