| 单词 | unofficial |
| 释义 | unofficialunofficialunofficial /ˌʌnəˈfɪʃəl◂/ adjective1done or produced without formal approval or permission: an unofficial biography一部非正式传记2not done as part of someone’s official duties: The Senator is in Berlin on an unofficial visit.be参议员正在柏林进行私人访问。—unofficiallyunofficially adverb |
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