beforehand
adv. 预先,事先
If you do something beforehand, you do it earlier than a particular event.
How could she tell beforehand that I was going to go out?...
她怎么会事先知道我要出去?
Saunas can be hazardous if misused. Avoid a big meal beforehand.
洗桑拿浴如果方法不当会有危险,浴前切忌饱食。
1. being ahead of time or need;
1. ahead of time; in anticipation;
be beforehand with
(古)预防,(以抢先行动来)防止
He rehearsed the interview in his mind beforehand.
他把面试时要说的话预先想好了.
They proposed to make arrangement beforehand.
他们提议事先做好安排.
If I'd known this beforehand, I would not have gone back.
早知如此, 我就不回去了.
If you want me to put your case forcibly, you must brief me thoroughly beforehand.
要是你想让我把你的案子处理得有说服力, 你先得原原本本地向我介绍情况.
He was informed beforehand.
他预先得到通知.