我能感到血从脸上淌下来。我不知道自己是不是要昏过去了。

I could feel blood draining from my face. I wondered whether I was about to black out.

《柯林斯英汉双解大词典》

给我看看，我会根据烟气的弯曲方式告诉你们他们是不是要出征了。

Show me, and I'll tell you by the way smoke curls whether they are on the war-path.

youdao

我们要坠毁了，是不是？

We're going to crash, aren't we?

《牛津词典》

And the first thing you do is ask is it an instance of some problem that other people have already solved?

而且你以前从没碰过这个问题,你首先要做的一件事就是问问自己,这是不是一个别人已经解决了的问题？

麻省理工公开课 - 计算机科学及编程导论课程节选

And in this case we're going to look at silicone, and we'll say if you can point out to me which requires the least amount of energy.

这次我们要做的是关于硅的，我们来看看大家是不是,能够为我指出那一项需要消耗的能量最少。

麻省理工公开课 - 化学原理课程节选

I think you should take the lab sometime, but I don't know how many semesters that you have to take.

我觉得你们应该是不是地去做几次实验,我不太清楚你们要上多少个学期的课

耶鲁公开课 - 基础物理课程节选