beforehand

adv.预先；事先；提前

I had made preparations beforehand. 我预先作了准备。

He warned me beforehand what to expect. 他预先提醒过我这件事。

Actually I meant to notify you beforehand. 实际上我是想事先通知你的。

It had been arranged beforehand. 那事已提前安排好了。

He arrived at the meeting place beforehand. 他提前到达会面地点。

beforehand的基本意思是“预先；事先”，在句中多用作状语。beforehand也可用作表语，这时的意思是“预先准备好的；早做准备的”。

beforehand不用于比较等级。