"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

That's correct. So her answer was, if it was a full parabola, then we know it would've been at the ground before I set my clock to 0.

她说,如果运动轨迹为一条完整的抛物线,那么它在我们所设定的零时刻之前,就已经落地了

耶鲁公开课 - 基础物理课程节选

My flight, my train should be leaving 8 o'clock tonight, Belgium time.

我的飞机，我的火车应该在比利时时间今晚八点出发。

方便的欧洲之星 - SpeakingMax英语口语达人

I hear, perhaps, the sounds of the cars outside my house, my alarm clock ringing, what have you.

我听到,轿车的声音从室外传来,或是闹钟的铃响,随你想象

耶鲁公开课 - 死亡课程节选

I like to stay up until midnight or even later on my natural clock.

我很喜欢熬夜,一直到午夜或者更晚,这是我的生物钟。

普林斯顿公开课 - 国际座谈会课程节选