I`m not sure whether it`s good for him being a university student at this age. But I hope he can get a good job in the future, " she said.

我不知道他现在这个年纪去读大学是好还是坏，但我希望他将来能找份好工作。

youdao

DON BRADLEY: Yes, I like these two still but I 'm not sure about that one.

堂。布拉德利：是的，我还是喜欢这两套，但对那个不是很确定。

youdao

I see, but I 'm not sure I can do that. You see, sometimes I just can't help but lose my temper.

我知道，便我说不好是否那样做。你知道，有时候我真控制不了要发脾气。

youdao

"Celebrating with our family." "Presents!" "I usually get presents that say Santa Claus on them but I'm not really sure if they're from him."

VOA: special.2009.12.21

But, just to be sure, not to be sure, but just to increase my confidence, I'm going to just run it again.

所以说它是对的是很有道理的，但是，确定一下，但是为了提高我们的自信，我要再运行一次。

麻省理工公开课 - 计算机科学及编程导论课程节选

And then our drop date is normally, I'm not exactly sure when, but it's actually probably in November,

然后退课的日子通常是，我不确定什么时候，不过其实大概是十一月，

对于返校日 - SpeakingMax英语口语达人

So I'm anti Santorum, but I'm not sure I'm completely with Casey yet.

NPR: For Santorum, Race Momentum Swings

And so sometimes people think, well, I'd like to do it but I'm not sure I can make the commitment.

WHITEHOUSE: Celebrating National Mentoring Month

But I'm not sure I can do it.

WSJ: Jason Gay: Confessions of a Tennis Grunter