| 正面 | 1337.unless 英 [ʌn'les]美 [ən'lɛs]     |
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| 背面 |     释义： 1. 向前运动。conj. 除非，如果不prep. 除…之外 例句： 1. The targets would not be achieved unless other departments showed equal commitment.除非其他部门同样努力，否则这些目标无法达成。 unless 除非来自短语on less (than), 在少于的情况下，后由于该短语的否定含义，介词on被改写成了un.词义演变比较despite, in spite of . unless (conj.)mid-15c., earlier onlesse, from (not) on lesse (than) "(not) on a less compelling condition (than);" see less. The first syllable originally on, but the negative connotation and the lack of stress changed it to un-. "Except could once be used as a synonym for unless, but the words have now drawn entirely apart" [Century Dictionary]." |