I anticipate his arrival at four o 'clock.

我期待他4点钟到达。

《新英汉大辞典》

Let's come back at four o 'clock.

让我们在4点回来。

youdao

We have tea at four o 'clock in the afternoon.

我们在下午四点钟喝茶。

youdao

She was nineteen. Those who knew Ida Tarbell in college say she would wake up at four o'clock in the morning to study.

VOA: special.2010.04.25

Mister Mindon looked at his watch. Four o'clock.

VOA: special.2010.05.29

Then, at four o'clock in the afternoon, twenty-four hours after the mortar fell on his friends and neighbors while they waited to buy bread, he will bend down and pick up his bow.

NPR: Excerpt: 'The Cellist Of Sarajevo'

Had you arrived from Mars at around four o'clock a couple of Saturdays back, you would have wondered what all the fuss was about.

BBC: Chick Young's view

However, Ms O'Connor and the other four ruled that Mr Hamdi should at least have some forum in which to contest his enemy-combatant status.

ECONOMIST: Terror suspects freed from legal limbo | The