perforator 穿孔的人,穿孔器,剪票夾
per·fo·ra·tor /ˈpɝfəˌretɚ/ 名詞 鑽孔器
perforator 打孔機
Per·fo·ra·tor n. One who, or that which, perforates; esp., a cephalotome. ◄ ►