Give me one good reason why I should help you.

我为什么要帮你？给我一个充分的理由。

《牛津词典》

Kate gives a good reason for her decision.

凯特为她的决定给出了一个很好的理由。

youdao

youdao

He even said the South had good reason to leave the Union, if northern Abolitionists continued their anti-slavery campaign.

VOA: special.2009.05.07

Is there any good reason to believe that we don't believe that we're going to cease to exist as a person?

有没有一个好的理由相信,我们不相信,自己会停止作为一个人的存在呢？

耶鲁公开课 - 死亡课程节选

The question we're asking is, "Is there a good reason to add to our list of things there are?

我们的问题是,有没有一个很好的理由,让我们往已写有东西的清单上再添上几笔

耶鲁公开课 - 死亡课程节选

And the question in the case today was whether prosecutors really had another good reason or not.

NPR: Slate's Jurisprudence: Court Passes on Padilla Case

Kentucky that prosecutors have to have a good reason for striking a black or Hispanic or Asian juror.

NPR: Slate's Jurisprudence: Court Passes on Padilla Case

For good reason nearly two-thirds of Americans say they want to stay out of Libya.

FORBES: Libya: Another Unnecessary War Of Choice