If you have time left, go over everything to make sure you haven't made any careless mistakes.

如果你还有时间，就把所有的东西都检查一遍，确保你没有犯任何粗心的错误。

youdao

If there's none left we'll have to do without.

如果没有剩余的我们就只得将就了。

《牛津词典》

If it had been left to me I would have put him out on the street long ago.

换了我，早就把他赶出家门了。

《牛津词典》

Sylvie would have had a much better time if the young man had left his gun at home.

VOA: special.2010.04.03

So, what we do as our seventh step is then figure out if we have any extra valence electrons left at all.

那么，第七步要做的是看看,我们还有没有剩下的价电子。

麻省理工公开课 - 化学原理课程节选

So, seven asks us if we have any valence electrons left, and how many valence electrons do we have left?

那么，第七步问我们是否还有价电子剩下，我们剩下了几个价电子？

麻省理工公开课 - 化学原理课程节选

It is necessary for new federal judges to be named only if they have left state service for a period of no less than 10 years and if they have worked for no less than 5 years as lawyers or as justices of the peace.

FORBES: Responsible Executive Power

If discouraged workers have left the labour force because they could not find a job, then the unemployment rate may understate the hardship they face.

ECONOMIST: Economics focus

If you have money left in your FSA for this plan year, you need to buy OTC drugs now, that is before Dec. 31, and consider the new rules before deciding how much money to put away for 2011.

FORBES: Blame Obamacare For New FSA Limits And Act Now To Save