He did you a good turn by resigning.

他辞职对你有利。

《柯林斯英汉双解大词典》

They might be doing me a good turn if they took me into protective custody.

如果他们对我进行保护性拘留，那对我可能是一件好事。

《柯林斯英汉双解大词典》

You did me a good turn, and, in this world, what is given is always returned.

你帮了我一个大忙，在这个世界上，付出总会有回报的。

youdao

It didn't turn out well, but you know, I mean it was a nice memory though, a good experience making chocolate."

VOA: special.2010.02.08

And in a moment I'll turn to evaluate whether it's a good argument or not, but I think it's a pretty interesting argument.

一会儿我会评估,这是不是个好的论证,但是我认为这是个很有趣的论证。

耶鲁公开课 - 死亡课程节选

I don't think that's a very good reason because you choose to- either way you have to choose who dies because you either choose to turn and kill the person, which is an act of conscious thought to turn, or you choose to push the fat man over which is also an active, conscious action.

我认为这不是一个很好的理由,因为不论哪种情况，你都得选择让谁死,或者你是选择转弯撞死一名工人，这种转弯就是种有意识的行为，或者你是选择把胖子推下去,这同样是一种主动的，有意识的行为。

耶鲁公开课 - 公正课程节选

My answer is this: he was trying to do that short devil a good turn.

NPR: Excerpt: 'True Grit'

Hard though it is to admit it, Kingfish's assassin may have done his country a good turn.

ECONOMIST: American politics 2

The Greffier of the States, Michael de la Haye, said it was important to get a good turn out.

BBC: Jersey voters urged to register before reform referendum