I know which area they live in, but whether I can find their house is a different matter.

我知道他们住在哪一地区，但能不能找到他们的住宅则是另外一回事了。

《牛津词典》

I wonder whether I can arrive in Guangzhou in two hours.

我想知道我是否能在两小时内到达广州。

youdao

I am worried about whether I can enter a good high school or not.

我担心我是否能进入一所好高中。

youdao

"As you can see I can't tell right now whether he wants to eat more or whether he needs to burp, so we might try the burping.

VOA: special.2010.08.04

And they're awfully simple because, all I can do now, is decide whether to execute some piece of code or another.

它们之所以太简单的原因是：,现在我能做的，就是,决定执行一块代码或者执行另外一块。

麻省理工公开课 - 计算机科学及编程导论课程节选

If you are expressing an opinion, in other words, which differs radically from my own, I can't understand, according to Gadamer, whether or not you're being ironic.

换句话说，如果你在表达一个,与我所持观点彻底相反的观点时，葛达玛认为我并不能理解你是不是在讽刺。

耶鲁公开课 - 文学理论导论课程节选

What I am trying to discover is whether I can be a male and be a nudist and be accepted in society.

FORBES: Wine, Cheese, Couchsurfing, and Nudity

Of course, if people ask whether I can perform a miracle to fix all the damage in one day, I can't do it.

CNN: THE FEUDING MINISTERS

"We do make individual informed or uniformed decisions about whether I can have that test or whether I can take that medicine, " she says.

NPR: Americans Cutting Back On Medical Care, Poll Finds