Try it before you buy a coat.

买大衣前先试穿一下。

youdao

You must sow, before you can reap.

你必须播种，才会有收获。

youdao

Think twice before you do.

三思而后行。

youdao

You have no need of your courage, John Carter, because you already knew the answer before you asked the question.

VOA: special.2010.07.31

And if they can't answer that question, I say well, before you even run it, have an answer to that.

如果他们没法回答这个问题的话，我会说好吧，在你运行实验之前，先回答这个问题吧。

麻省理工公开课 - 计算机科学及编程导论课程节选

I think there's the old saying, "You can't run before you walk." and I think it's basically the same thing about writing.

有句俗话叫，“你不能未立先走。”我觉得写作跟这个是一个道理。

英语阅读：技巧 - SpeakingMax英语口语达人

Here are few things to consider before you make gold a part of your investment portfolio.

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Long before you can see the birds along the river, you can hear them.

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And finally, make sure you get your beauty sleep in before you hit the town.

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