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单词 unless
释义
C133630050unlessSpoken.6480Fiction.5864Magazine.6689Newspaper.5926Academic.5091

unless

/ənˈles/
conjunction
except if (used to introduce the case in which a statement being made is not true or valid)
除非; 若不:

unless you have a photographic memory, repetition is vital

除非你有过目不忘的记忆力, 否则重复是非常必要的

manuscripts cannot be returned unless accompanied by a self-addressed envelope.

除非附有写明自己地址的信封, 否则原稿是不能退的。

词源
late Middle English: from ON or IN (assimilated through lack of stress to UN-1) + LESS.
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更新时间:2025/8/2 6:33:08