The word is 'sub', pronounced [sʌb]. It is a noun meaning submarine, subway, or substitute.
这个单词是'sub'，发音为[sʌb]。它是一个名词，意思是潜水艇、地铁或替补队员。
| 单词 | sub |
|---|---|
| 发音 | [sʌb] |
| 释义 | n. 潜水艇；地铁；替补队员 |
| 词序 | 11052 |
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