情感和態(tài)度表達(dá)——肯定　Certainty

情感和態(tài)度表達(dá)—— 肯定　Certainty

確定

I'm sure that this is Peter's car.我確定這是彼得的車。

There's no doubt that John would leave the company.無疑約翰要離開公司了。

不確定

We haven't decided yet.我們還沒有做決定。

I'm not sure whether I want to accept that job.我還不確定是否要接受那份工作。