1. I don't know.我不知道。

2. I'm not sure.我不確定。

3. Who knows?誰(shuí)知道啊?

4. Don't ask me!別問(wèn)我!

5. It's not certain.還不確定。

6. Nothing is set yet.事情都還沒(méi)有定案。

7. It hasn't been decided yet.還沒(méi)有決定呢。

8. It's not clear.事情還未明朗。

9. It's up in the air.情況還混沌未明。

10. It's hard to say.很難說(shuō)。

11.I'm quite decided.我已下定決心。

12.I'm decided against selling the house.

我已決定不賣(mài)這所房子了。

13. I've made up my mind not to change my plan.

我已決定不改變計(jì)劃了。

14.I've set my mind on the plan.我已決定了這個(gè)計(jì)劃。

15They're settled where to camp.他們決定到哪里去野營(yíng)了。

16.We've fixed on starting tomorrow.我們已決定明天出發(fā)。

17.I've made a decision to resign.我已決定辭職了。

18.We've arrived at a decision now.我們現(xiàn)在已決定下來(lái)了。