你还没告诉我就先对我妻子讲了，为此我非常生气。

I take great exception to the fact that you told my wife before you told me.

《牛津词典》

如果你要变得富有，那么就先保持健康吧。

Keep healthy first if you want to become wealthy.

youdao

面对这些情况，今天我就先随便写点什么。

Faced with all this my writing today is brief and off-the-cuff.

youdao

And the temperature scale that turns out to be well-defined and ends up giving us the concept of an absolute zero is the ideal gas thermometer.

比如理想气体温标,它有精确的定义,并能引出绝对零度的概念,今天我们就先来谈谈它。

麻省理工公开课 - 热力学与动力学课程节选

I wanna stop here because I think that's a role that you have provided for many students.

我想这个话题就先说到这儿，因为我觉得,那是您为很多学生担当的工作。

普林斯顿公开课 - 人性课程节选

If you multiply entry 23, which is 13.6 electron volts I will show you what the electron volt is in a few minutes. We will just put it up here prematurely. But that is given in your chart.

如果乘上第23个常量，代表13。6电子伏,接下来我就会向你们说明什么是电子伏,我们先提前把它提出来,但那只是放在你们的图表中。

麻省理工公开课 - 固态化学导论课程节选