| 单词 | un- |
| 释义 | un-un-un- /ʌn/ prefix1not: unhappy不高兴的unexpected意料之外的2used to talk about the opposite of an action: I undressed quickly (=took my clothes off).undress我很快脱了衣服。You can unfasten your seat belt now.现在你可以解开安全带了。 |
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