2. I'm not sure.我不确定。
3. Who knows?谁知道啊?
4. Don't ask me!别问我!
5. It's not certain.还不确定。
6. Nothing is set yet.事情都还没有定案。
7. It hasn't been decided yet.还没有决定呢。
8. It's not clear.事情还未明朗。
9. It's up in the air.情况还混沌未明。
10. It's hard to say.很难说。
11.I'm quite decided.我已下定决心。
12.I'm decided against selling the house.
我已决定不卖这所房子了。
13. I've made up my mind not to change my plan.
我已决定不改变计划了。
14.I've set my mind on the plan.我已决定了这个计划。
15They're settled where to camp.他们决定到哪里去野营了。
16.We've fixed on starting tomorrow.我们已决定明天出发。
17.I've made a decision to resign.我已决定辞职了。
18.We've arrived at a decision now.我们现在已决定下来了。
