他们九点钟要做什么？

What are they going to do at nine o'clock?

我们早上九点钟离开了。

We left at nine o'clock in the morning.

现在是早上九点钟。

It's nine o'clock in the morning now.

会议将在九点钟开始。

The meeting will start at nine o'clock.

我已经在餐馆预订了一张九点钟的桌子。

I've booked a table at the restaurant for nine o'clock.

我们九点钟到达公园。

We reached the park at nine o'clock.

商店一般在九点钟开始营业。

The shops usually open at nine o'clock.

直到九点钟，我只接到三个电话。

Until nine o'clock, I only had threecalls.

我制定了一个九点钟见面的约会。

I made a appointment to meet at nine o'clock.

今天上午九点钟，我在读课文。

At nine o'clock this morning, I was reading the text.