不能肯定

But I'm not sure that's right.

但我不能肯定是正确的。

I can't make a sure.

我不能肯定。

If there is any doubt, you had better make certain.

如果你有什么不能肯定的，一定要弄清楚。

I don't make sure that when I will come.

我不能肯定地告诉你我什么时候来。

I cannot make sure that when i will come.

我不能肯定地告诉你我什么时候来。

I think that is right, but I can't make sure.

我想那是对的，不过我也不能肯定。

I think that is right,but I do not make sure.

我想那是对的，不过我也不能肯定。

I think that's right,but I can't make sure.

我想那是对的，不过我也不能肯定。

I think that is right,but i am not make sure.

我想那是对的，不过我也不能肯定。

I heard he's been transferred to another department as a marketing manager .

但我不能肯定你说的是对的，我听说他被调到别的公司做销售经理了。

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。