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
The government announced its new economic policies.
政府发布了新的经济政策。
It is too late to cast anchor when the ship is on the rock.
船触礁后在抛锚,为时已经太晚了。
The word justice is usually associated with courts of law.