不能肯定

I think that's maybe right,but I 'm not sure.

我想那是对的，不过我也不能肯定。

I think that's right, but I am not sure that I am right.

我想那是对的，不过我也不能肯定。

I thought it might be right, but I am nt sure.

我想那是对的，不过我也不能肯定。

I'm not even sure about the opera..

我甚至不能肯定歌剧的事。。。

But, I am not sure of the origins of this dish in Canada.

但是，我不能肯定这起源于加拿大，我认为这是来自中国。

P: I'm not quite certain.

我不能肯定。

I cannot assure whether it is worthy to my persistence...

我也不能肯定这样的坚持是否值得。。。

I am not sure whether there is any petrol in the tank.

我不能肯定油箱里是否还有油。

I think that's right,but I am not so positive.

我想那是对的，不过我也不能肯定。

I am not sure if we have the possibility of success.

我不能肯定我们是否有成功的可能。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。