不能肯定的

But I'm not sure that's right.

但我不能肯定是正确的。

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 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。。。

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。。。

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