perforation
n
1 [U] perforating or being perforated (在某物上)穿孔; (在纸等上)打齿孔.
2 [C] series of small holes made in paper, etc (纸等上的)齿孔
tear the sheet along the perforations 顺齿孔撕下该页.
🏥 医学释义
穿孔,打眼,穿孔术
🗣️ 情景例句
What are some of the other sports products you're making?
你们现在还生产哪些运动产品?
I hope you change his plan.
我希望你改变他的计划。
Loud conversations on mobile phones invade our thoughts or interrupt the pleasure of meeting friends for a quiet chat.