And administrators had planned to return to the eight o'clock start time after the study.

VOA: special.2010.07.07

One way to mark time is to imagine it carries a clock as it moves, and put markers every second.

标记时间的一种方法是,想像它带着时钟运动,并且每秒做一次标记

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

Central Standard Time, two o'clock Eastern Standard Time, some thirty-eight minutes ago."

VOA: special.2009.08.16

Now, the clock says I've run out of time.

哦,我们的时间不多了

耶鲁公开课 - 美国内战与重建课程节选

"Memorial should not dictate to us what we do in our own time, off the time clock."

VOA: standard.2010.02.18

So what this says is, you can measure time by having your own clock.

也就是说,你可以用时钟来测量时间

耶鲁公开课 - 基础物理课程节选

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

A clock tells you what time it is, but you can also say what time it is by seeing how fast the particle is moving because you know it started with some speed.

时钟能告诉你现在的时间,但你也可以通过测量质点速度,来判断当前的时间,因为你知道它的初速度

耶鲁公开课 - 基础物理课程节选

If that's all it knows, then in that scenario there is no building or anything else; it continues a trajectory both forward in time and backward in time, and it says that whatever seconds, one second before you set your clock to 0, it would've been on the ground.

如果是这样,在那种模式下,没有楼房或者别的什么,物体的运动轨迹可以沿时间可以向后延伸,也可以向前延伸,不管时间取什么值,在零点前一秒时,物体就在地面上

耶鲁公开课 - 基础物理课程节选

First of all, negative time should not bother anybody; t=0 is when I set the clock, I measured time forward, but yesterday would be t = -1 day, right?

首先,负的时间对我们不存在任何干扰,t=0使我们设定的初始时间,我是用顺序计时,所以昨天就可以记为-1天,对吗

耶鲁公开课 - 基础物理课程节选