我试图说服他，但却无济于事。

I tried to persuade him, but with little or no effect.

《牛津词典》

我想工作，但却被孩子拴在家里。

I want to work but I'm tied to the house with the baby.

《牛津词典》

我的确想帮忙，但却多有不便。

I really wish I could help but my hands are tied.

《牛津词典》

We've used the fundamental equations that are hiding down here, out of sight but never out of mind.

我们利用了,写在这里的基本方程，虽然没有注意它但却时时刻刻记者它。

麻省理工公开课 - 热力学与动力学课程节选

One situation is when you're speaking with a friend who had given you really good advice that you failed to take.

一种情况是，当你正在和一个朋友交谈，他之前曾给你一些很好的建议，但你却没有采纳。

I should have 课堂 - SpeakingMax英语口语达人

So, we're going to talk about somebody's idea about racial prejudice, but that's not a theory of language acquisition.

我们会谈到某人所提出的,关于种族偏见的理论，但它却并不是语言获得的理论。

耶鲁公开课 - 心理学导论课程节选