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。

We were aware of the problem beforehand.我们事先就知道有这个问题。

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。

We knew they were coming, so we bought some food beforehand.
我们知道他们要来,所以预先买了一些食物。

Please inform me of your arrival time beforehand.
请事先通知我你抵达的时间。

I wish we'd known about it beforehand.
要是我们预先知道这件事就好了。

Don't be beforehand in making up your mind.
不要过早做决定。

He feared that I should be beforehand with him.
他害怕我捷足先登。

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。

beforehand的相关资料：

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。

We were aware of the problem beforehand.我们事先就知道有这个问题。

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。

We knew they were coming, so we bought some food beforehand.
我们知道他们要来,所以预先买了一些食物。

Please inform me of your arrival time beforehand.
请事先通知我你抵达的时间。

I wish we'd known about it beforehand.
要是我们预先知道这件事就好了。

Don't be beforehand in making up your mind.
不要过早做决定。

He feared that I should be beforehand with him.
他害怕我捷足先登。

• already已经
• in advance提前
• earlier早的
• before在 ... 以前
• early早
• ahead of time提前
• previously先前
• ahead领先
• advance前进

• afterward