私下里，她担心她是不是真的够好。

Privately, she worries about whether she's really good enough.

《柯林斯英汉双解大词典》

也许她要回去看看朵拉是不是真的在那里，或者别的什么。

Maybe she's going back there to see if Dora is really back there or whatever.

youdao

对不起，我能问一下你是不是真的看不见吗？

Excuse me, may I ask you whether you're really blind?

youdao

We are honoring instead the integrity of what they're saying without thinking about whether or not it might be true.

我们事实上反而在,尊重他们所说内容的真实性,却从未想过这到底是不是真的。

耶鲁公开课 - 文学理论导论课程节选

I really have no idea whether it's a fact, and it's not important in My Fair Lady whether it's a fact.

我真的不知道这是不是真的，但是它在窈窕淑女里面真实与否并不重要。

耶鲁公开课 - 文学理论导论课程节选

That might be a question you might wanna answer or you might wanna say, is the thing on the left and the thing on the right both true?

这可能是一个,你得到回答的问题，你还可能会问是不是左边的和右边的都是真的？

哈佛公开课 - 计算机科学课程节选