| 单词 | perforation |
| 释义 | perforation/ˌpɜ:fəˈreɪʃn ||; ˌpɝfəˈreʃən/noun1. [c] a series of small holes in paper, etc that make it easy for you to tear （纸等上的）孔眼，齿孔，孔眼线 2. [u] the action of making a hole or holes in sth 穿孔；打孔；打洞 perforation /ˏpɜfə`reʃən; ˌpɜːfəˈreɪʃən/n [c,u] |
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