Being informed will help you prepare interesting questions beforehand .

充足的信息会有助于你事先准备好有趣的问题。

They haven 't been really looked at much beforehand .

他们预先并没有太多依据可以参照。

Definitely talk about it beforehand , or as soon as possible .

当然是提前就谈论这个问题，或者尽早谈论要好。

He should have thought of all that beforehand .

总统他事前本应该想到所有这些。

Agree on an agenda beforehand .

事先将议事日程达成一致。