"And much of his repertoire,pieces like, oh,Syncopated Clock and Sleigh Ride and things like that we play to this day."

VOA: standard.2010.07.28

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

Other areas, other people in retail, they go home like at nine, ten o'clock,

其他地区，干零售业的人都要九点十点回家。

比佛利山庄的购物街 - SpeakingMax英语口语达人

It's usually shown like a clock is shown here, where time 0, which is at the top here is right at the end of mitosis where you have two new cells that are formed.

通常会用一个类似时钟的图来图示,0时刻,在最上端 为上次有丝分裂终点,代表两个新细胞刚刚形成

耶鲁公开课 - 生物医学工程探索课程节选