Mr. Smith is expecting you at 3 o 'clock.

史密斯先生等待着你三点钟到来。

youdao

This experiment is to start at 3 o 'clock.

实验3点钟开始。

youdao

Please come to the Business Centre just before 3 o 'clock.

请在3点之前来商务中心。

youdao

I run out of the house and then usually around 3 o'clock somebody points out, in one case a homeless man, that I have a big glob of shaving cream in my ear or-- because I neglected to actually look in the mirror while I shaved.

然后冲出家门,大概到了下午三点时，会有人跟我说，有一次是一个流浪汉，告诉我，我耳朵上有一团剃须膏-,因为我剃须时忘了,照镜子。

耶鲁公开课 - 心理学导论课程节选

and goes to bed at 3:34 o'clock, if it's clear.

：34太阳就落山了，这还是在如果天晴的情况下。

我来自阿拉斯加 - SpeakingMax英语口语达人

In this case, I'm going to get back the answer 3 F-O-O because the user typed in F-O-O, but wait a minute, what's with this?

假若这样，我得到了答案3,因为用户输入了，等一下，用这个干吗？

哈佛公开课 - 计算机科学课程节选