Okay. First of all, let's look at the simile that compares Satan's shield to the moon.

首先，我们来看看这些将,撒旦的庇护地比作了月亮的明喻。

耶鲁公开课 - 弥尔顿课程节选

First Socrates' manner of teaching ? is markedly different from the poets right?

首先，苏格拉底的教学法,明显地不同于诗人，对吗？

耶鲁公开课 - 政治哲学导论课程节选

First, that the rights are unalienable and therefore, I don't really own myself after all.

首先，有些权力是不可剥夺的,所以我并非真正地拥有自己。

耶鲁公开课 - 公正课程节选

First of all,notice the obvious point that sometimes people die in their sleep,unexpectedly.

首先，有时人是在睡梦中无预兆地死去。

耶鲁公开课 - 死亡课程节选

And all we can do after we accept this nature is to first understand it through research, and then after we understand it, make the best use of it.

在接受这个本性后，我们唯一能做的,是通过研究首先来理解它，理解它后，好好地利用它。

哈佛公开课 - 幸福课课程节选

But let's quickly talk about the big three.

首先，我们快速地说说三大可变因素。

耶鲁公开课 - 心理学导论课程节选