You might have to do a math problem a few times before you get it right.

你可能要把一道数学题做几次才把它做对。

youdao

Know what you want, half to know what you must give up before you get it...

知道你想要什么，一半在于知道得到它之前必须放弃什么。

youdao

One half of knowing what you want is knowing what you must give up before you get it.

其中一半知道你想要什么，知道你之前，你必须放弃它。

youdao

"It's the first cup of coffee on the dresser when you are in the shower and it's warming up the car before you get into it on a wintry morning."

VOA: standard.2010.02.13

So, it's awkward to have to wait for a cow to get infected before you can vaccinate a population.

在给人们预防接种之前,你只有干等着,直到有一头奶牛感染了病毒才行

耶鲁公开课 - 生物医学工程探索课程节选

Sleep thought" is the sort of thing you get typically before you fall asleep and it's like "did I take the garbage out, ??

半睡半醒的想法是指那些,你睡着前所想到的东西,例如“我倒垃圾了吗？

耶鲁公开课 - 心理学导论课程节选

If you are running yourself in the ground too long for a future payoff, you will end up in the ground before you get it.

FORBES: The Fallacy Of Saving For Traditional Retirement

On the other hand, you're doing something new, no one's ever done it before, and you get it completely wrong.

CNN: Why the best thing you can do is fail

Like an iPod nano purchased at the Pearl Market in Beijing, this credit rating downgrade will stop working before you even get it home.

FORBES: U.S. Debt Rating Downgraded (Sort Of)