不能肯定

I am afraid I can not tell you predicatively when will I come .

我不能肯定地告诉你我什么时候来。

I suppose that is correct, but I am not pretty sure.

我想那是对的，不过我也不能肯定。

People are not sure why they built this pyramid,but it must have been important.

现在人们不能肯定他们建造这一金字塔的原因，但在当时一定是很重要的。

I dont think it's right, but i am not quire sure

我想那是对的，不过我也不能肯定。

I think that is right, but I am not quite sure.

我想那是对的，不过我也不能肯定。

Again, in their eyes, the citation of the book by rabbinical writers, sometimes in Hebrew, sometimes in Aramaic, did not appear decisive, since it was not certain that they came from a Hebrew original.

同样，在他们的心目中，这本书引用的犹太作家，有时在希伯来文，有时在阿拉姆语，似乎没有决定性的，因为它不能肯定他们是来自希伯来语原始。

But Spindler isn't sure the trade-off is worth it .

但是Spindler不能肯定节食是否值得。

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

我想那是对的，不过我也不能肯定。

I suppose that is right, but I'm not sure.

我想那是对的，不过我也不能肯定。

I suppose that it is right,but I am not sure about it.

我想那是对的，不过我也不能肯定。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。