When I had made an end of these labors, it was four o'clock in the morning.

VOA: special.2009.05.16

And the last example that we're going to talk about is thionyl chloride, so it's s o c l 2. This is another good step forward, because now we actually have four different atoms in our molecule.

我们要讨论的最后一个例子,是氯化亚砜，就是硫，氧，氯，二，这又是一个进步，因为我们的分子中现在有四个不同的原子了。

麻省理工公开课 - 化学原理课程节选

Okay, which one is that? Seven o one three nine two four nine (70139249), what's...

我也一脸茫然，他们说的数字代表什么？70139249，什么意思？

社团小组信息 - SpeakingMax英语口语达人

It was four o'clock in the afternoon when Paul woke up.

VOA: special.2009.04.11

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

VOA: special.2010.05.29

It's four o'clock in the morning and the 68-year-old fisherman is dragging a plastic trunk of fish carcasses across the dock toward his boat.

VOA: standard.2010.07.20

This week in our series, Shep O'Neal and Maurice Joyce tell the story of the election of eighteen sixty-four.

VOA: special.2009.12.10

For the first time the W.H.O.raised its alert level from phase four to phase five on April twenty-ninth.

VOA: special.2009.05.06

The team examined results from a Norwegian study of nine hundred fifty-four people with C.O.P.D.

VOA: special.2009.06.03

It was written by O.Henry and first published in nineteen-oh-four.

VOA: special.2010.06.12

"Three or four hours before I could fall asleep. I wake up three o'clock in the morning with the same stuff on my mind, tossing and turning.

VOA: standard.2010.05.04