perforations的翻译，读音
英/pɜ:fə'reɪʃnz/
释义：
n. 穿孔( perforation的复数形式 ); 贯穿; 针孔; 齿孔
n. a line of small holes for tearing at a particular place
n. a hole made in something
n. the act of punching a hole (especially a row of holes as for ease of separation)
n. a line of small holes for tearing at a particular place
n. a hole made in something
n. the act of punching a hole (especially a row of holes as for ease of separation)