她以前经常在笔记本电脑前工作到凌晨4点钟。

She used to work at her laptop until four in the morning.

《柯林斯英汉双解大词典》

我们预计十点钟以前结束。

We reckon to finish by ten.

《牛津词典》

她知道八点钟以前那儿的东西都很便宜。

She knew that everything was cheap there before eight o'clock.

youdao

她要七点钟备好茶点，这样她八点以前就可以出门了。

She wanted tea ready at seven so she could be out by eight.

youdao

你必须在今天下午4点钟以前完成任务。

You finish the assignment before 4 o 'clock this afternoon.

youdao

我必须在五点钟以前把它交上去吗？

Must I hand it in before five?

youdao

你能在五点钟以前做完这工作吗？

Can you finish the work by five o 'clock?

youdao

到昨天下5点钟以前，他们已经完成了工作任务的一半。

By 5 p. m. yesterday they had already done half of the work.

youdao

你必须在六点钟以前来这里。

You must be here before six o 'clock.

youdao

参观大概要一个半小时，3点钟以前回到这里。

The tour will take about an hour and a half. We ought to be back here by 3:00.

youdao

在十点钟以前，我们已经到达了车站。

We had reached the station before ten o 'clock.

youdao

我料想他六点钟以前会完成这项工作。

I imagine he'll have finished the job by six o 'clock.

youdao

我真希望他回家去。我从来没有在三点钟以前睡觉过。那是个什么样的睡觉时间呀？

I wish he would go home. I never get to bed before three o 'clock. What kind of hour is that to go to bed?

youdao

我从来没有在三点钟以前睡觉过。

I never get into bed before three o 'clock.

youdao

你10点钟以前一定要回来。

You are to be back by 10 o 'clock.

youdao

我想他八点钟以前会回来。

I suppose he will be back by eight o 'clock.

youdao

他将在三点钟以前回来。

He will be back by three.

youdao

五点钟以前我们很难完成。

It is very difficult for us to finish it before five.

youdao

他们要求我们9点钟以前到达那里。

They required that we(should)get there before 9.

youdao

我将在午餐后三点钟以前给你打电话。

I'll phone you between lunch and three o 'clock.

youdao

我每天早上六点钟以前起床。

I get up before six o 'clock every morning.

youdao

我们必须十点钟以前到达，这是个难题。

We must arrive before ten o 'clock, this is a difficult problem.

youdao

他告诉我们在九点钟以前都得准备好。

He told us we must all be ready by nine.

youdao

我跟他说得清清楚楚：他必须十点钟以前到这里。

I drove home to him that he must be here by ten.

youdao

我跟他说得清清楚楚：他必须十点钟以前到这里。

I drove home to him that he must be here by ten.

youdao