我不知道公司有没有空缺，不过我会打听打听。

I don't know of any vacancies in the company but I'll ask around.

《牛津词典》

他说："唔，我不知道——不过我好像是做到了。"

He said, "Well, I don't know--but somehow it seems as if I did."

youdao

老实说，我不知道，不过我想人们一定在像 Facebook 之类的东西上花了很多时间。

Honestly I don't know, but I guess people must spend a lot of time on things like Facebook.

youdao

I'm not sure if they make you pay a deposit, but I think you can just check them out, and then you'll have them for the semester.

我不知道是否需要交押金,不过你们可以去登记领取,使用一个学期的时间

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I'm not sure where it is now but it has done very well.

我不知道销售榜上它排在多少位,不过它已经卖得很好了

耶鲁公开课 - 金融市场课程节选

This guy--I don't know who he is but he seems to be on a lot of these things but the thing is you don't need to rely on him.

这个家伙，我不知道他是谁,不过他看起来在很多这类地方出现,但你不必依赖他做的表情。

耶鲁公开课 - 心理学导论课程节选