They have reason to believe that he is lying.

他们有理由认为他是在撒谎。

《牛津词典》

I think that we have reason to be optimistic.

我认为我们有乐观的理由。

youdao

In part because of our military effort, we have reason to believe that progress can be made.

部分由于我们的军事努力，我们有理由相信可以取得进展。

youdao

He says neither side expects a major shift in relations, but the White House does have reason for concern.

VOA: standard.2009.11.12

Given the thesis about recycling, then, we have reason to believe the soul will continue to exist after we break.

如果循环观点是正确的,那么我们有理由相信,灵魂会在我们消亡之后继续存在

耶鲁公开课 - 死亡课程节选

Well, Plato's very next argument attempts to persuade us that indeed we do have reason to believe that the soul is one of the prior-existing pieces.

柏拉图下面一个论证就试着,说服我们有理由相信,灵魂原来就是存在的

耶鲁公开课 - 死亡课程节选

Only a handful of the experts from our recently concluded contest have reason to brag.

FORBES: Big Bets

We're about to meet some people who have reason to note the words of Mark Twain.

NPR: Zimbabwe Government Goes After Media

But investors have reason to worry that the cyclical problems may be reinforcing a secular decline.

FORBES: Did You See "Office Space"? The Printer Scene? Read On