不能肯定的

I think that is right,but I am not sure as well.

我想那是对的，不过我也不能肯定。

Now we are not sure that he has atavism, because such a diagnosis needs more high-tech inspection.

目前还不能肯定陈聪华是一种返祖现象，需要利用高科技手段对其进行进一步的诊断。

I'm not sure why she refused their inv IT ation.

我尚不能肯定她为什么拒绝他们的邀请。

I can't be certain of what time I left the office.

我不能肯定我是什么时候离开办公室的。

I think that is right, but i cannot be sure of that .

我想那是对的，不过我也不能肯定。

I think that's right,but I can't be sure of it.

我想那是对的，不过我也不能肯定。

I think it was right, but i can not to be sure.

我想那是对的，不过我也不能肯定。

I think it is right, but I can not be sure.

我想那是对的，不过我也不能肯定。

I think it is right, but i can't be sure.

我想那是对的，不过我也不能肯定。

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

我想那是对的，不过我也不能肯定。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐