unless 详细解释

unless

[ən'les]

conj.除非, 如果不
prep.除 ... 外

conj.

如果不, 除非

I won't apologize unless she apologizes first.

除非她先道歉, 否则我不道歉。

prep.

除……外

词义辨析

同义参见:

worthless  but  

短语词组

unless and until

1. 直到……才

I will not believe it unless and until he tells me so.

除非他亲口对我说, 否则我决不相信。

补充

unlessunless英:[ʌnˈles] 美:[ʌnˈlɛs]conj.1.除非, 如果不You will fail unless you work hard.如果你不积极工作, 就会失败。Let's have dinner out — unless you are too tired.咱们出去吃饭吧——除非你太累了。Substances have no tendency to expand unless (they are) heated.除非受热, 物质不会有膨胀的倾向。I will be very angry unless you have already spoken to her.除非你已经对她说过了, 否则我会很生气。Don't ask me to explain unless you really don't understand.不要叫我解释, 除非你真的不懂。Unless paying by credit card, please pay in cash.如果不用信用卡付账, 就请付现金。

例句

1. I won't come unless you phone me.你不给我打电话, 我就不来。 2. They can't vote unless they have French citizenship.如果他们没有法国公民身份, 就不能投票。 3. He was told he would be killed unless he left the area.有人告诉他如果他不离开该地区就会被杀。 4. unless he comes, we won't be able to start.他不来我们就不能开始。 5. I'm not happy unless I ride every day.只有每天骑车我才会开心。 6. unless she was very much mistaken, he was showing off for her.除非是她弄错了, 他是炫耀给她看的。 7. Do I have to come?—Not unless you want to.我必须来吗？——除非你想来。 8. Nothing will come of it, unless disaster.此事除了引起灾祸以外不会有什么结果。 9. unless you have a photographic memory, repetition is vital.除非你记忆力惊人，否则重复是非常必要的。 10. 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。 11. I was told that unless my work improved, I would lose the job.我被告知，除非我工作表现有改善，否则将会被解雇。 12. ‘Would you like a cup of coffee?’ ‘Not unless you've already made some.’“你要喝杯咖啡吗？”“不了，除非你已经煮了一些。” 13. unless anyone has anything else to say, the meeting is closed.如果大家没有其他意见发表，会议到此结束。 14. Don't switch that on unless I'm here.除非我在这里，否则不要开这个开关。 15. He will fail the course unless he gets a 90 on the exam.如果考不到90分，他这门功课就不及格。 16. "unless something is done, the species will become extinct."如果不采取措施，这一物种将会灭绝。 17. I won't have an operation unless surgery is absolutely necessary. [=I will only have an operation if surgery is absolutely necessary]除非绝对必要，否则我是不会做手术的。 18. “Will I have to pay?” “Not unless [=only if] you want to.”“我要付钱吗？”“不用，除非你愿意付。”

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