You will surely realize your dream of being a writer unless you give it up halfway.

除非你不半途而废，否则你一定会实现当作家的梦想。

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You'll have to give up the trip to America unless you have your passport changed before September 3.

除非你在九月三日前更换护照，否则你将不得不放弃去美国的旅行。

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Striving is a condition that doesn't have an end, unless you give it up.

奋斗是一种没有尽头的状况，除非你放弃它。

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"Unless you're rejected outright, never give up on a prospect, " says J.

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But unless you think that what you are watching is believable, there is no joy in it and you may as well give up.

BBC: News