This flashcard defines 'perforation' as the action or process of making holes in something.
这个单词是 perforation，指的是穿孔；贯穿。
| 单词 | perforation |
|---|---|
| 发音 | [,pɜːfə'reɪʃn] |
| 释义 | n. 穿孔；贯穿 |
| 词序 | 19818 |
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