Paul can't drive so he was a fat lot of use when I broke my arm.

保罗不会开车，所以我手臂骨折时他一点忙也没帮上。

《牛津词典》

youdao

youdao

Speaking of personal questions, there is an expression people sometimes use when their children ask, "where do babies come from?"

VOA: special.2009.06.28

All of these systems we can call "languages," and "language"--that is to say, the words that we use when we speak to each other is one of those systems.

这种系统我们称为语言“,也就是说，是关于我们说话用语的研究,关于那个系统的研究。

耶鲁公开课 - 文学理论导论课程节选

Remember, this is pattern that we use when the question relates specifically to the person you are speaking with.

记住，我们使用这个句型时，所提的问题仅仅针对谈话的对象。

Do you 课堂 - SpeakingMax英语口语达人

Manual Focus is available for use when autofocus or focus lock is not desired.

ENGADGET: Sigma DP3 Merrill packs a Foveon X3 sensor and a fixed F2.8, 75mm-equivalent lens

What they want is a good local hospital they can use when they are sick.

BBC: NEWS | UK | England | NHS change protesters go on march

He is also who we use when our U.S. clients have matters in Russia.

FORBES: Patience Required As Chinese Companies Go Overseas