我认为时刻关心自己的儿女非常重要，这样他们不管什么时候遇到麻烦，都可以获得帮助。

I think caring for children is very important. Whenever they have problems, they can ask someone for help.

youdao

而之所以还没有出现，只是因为时机未到，并且现在对你来说还不是出现的最好时刻。

And whatever is not there yet is because the time is not right and it wont be good for you to get it now.

youdao

我们时时刻刻都在改变，即使我们的地位和品质看上去没有丝毫的变化，因为时间的推移本身就是一种改变。

Even when our position and our character seem to remain precisely the same, they are changing. For the mere advance of time is a change.

youdao

set in World War Two, so a very big moment in our history, so.

以二战为背景，这是我们历史上非常重要的时刻。

英国电影的魅力 - SpeakingMax英语口语达人

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

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