每天早上他们必须在3点钟醒来。

Every morning they had to wake up at 3 o'c1ock.

您和道格拉斯先生约好3点钟见面。

You have an appointment with Mr.Douglas at 3 o'clock.

如果是这样，请在7点钟早点来参加讲座。

If so, come early to the talk at 7.

大约八点钟的时候，我办公室的电话响了。

It was about eight o'clock when my office telephone rang.

他搭乘七点钟的国际航班去纽约。

He picked up/took the 7 o’clock international flight to New York.

他今天下午三点钟就要起行。

He is leaving at three o’clock this afternoon.

我们8点钟在电影院碰头。

We’ll meet at the cinema at 8 o’clock.

夏天我们一般十点钟停业。

In summer we usually close business at 10 o’clock.

七点钟公共汽车准点到站。

The bus arrived on the dot of seven o’clock. / The seven o’clock bus arrived on the dot.

我们进来时刚好十点钟。

It was just at ten o’clock that we came in.