Before that, I brush my teeth.

在那之前，我刷牙。

Turn right before that sign.

在那个标志前右转。

We'd better get home before that.

我们最好在那之前回家。

But before that, let me introduce someone.

但在那之前，让我介绍一个人。

There were eating places travellers could go to centuries before that.

在那之前的几个世纪里，旅行者可以去一些用餐的地方。

Before that, books in Europe were copied by hand, so they were very expensive.

之前欧洲的书都是手工抄的，所以很贵。

But before that, I can search online and see if I can find some advice for you.

但在此之前，我可以在网上搜索一下，看能不能给你找到一些建议。

I will be at your house at 7.30 because I have an appointment before that.

我将在7:30到你家，因为在那之前我有个约会。

The month before that, 72.

而在那之前一个月是72天。

I would do anything before that.

我宁愿做任何事,就是不想做那件事.