还没确定英文

in the air 可感觉到的；未确定的on the air在广播所以应该是It's up in the air

我还没确定的英文(1) I have not decided yet (2) I have not made up my mind yet (3) I have not made my decision (3) I am still kept in uncertainty (4) I still remain undetermined / undecided

The date has not been decided yet.

I'm still not sure

-->'The schedule is still not finalized.The schedule is still not settled??? fixed???(哪个次表达定下来更好一点。决定有点生硬，想找翻译得更生动一点。)'-->用现在完成式较好，表示到现在还没决定。读起来也比较顺口。The schedule has not yet been finalized.--》我是不是也可以说成 is still under discussion/处理？？可以，但这句应用被动式，表示’我们还在讨论日期，所以还没有定下来‘：The schedule is still been discussed.

I'm not sure so far.

中文：日期还没确定下来。英文：Date hasn't been decided.