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
Lots of people are tired of higher taxes.
许多人对于增税很厌烦。
I wish I were running across an open field.
我真希望在原野奔跑。
A cat's ability to survive falls is based on fact.