第一部分是讲3年前的事情，但现在又一次发生了。

Part One was about 3 years ago, but now it has happened again.

youdao

我吃点心的时候，她开始给我讲我们后来称之为“我生活中的一课”的第一部分。

As I ate she began the first of what we later called "my lesson in living."

youdao

首先，我将从第一部分漏讲的地方谈起，比较和对照(听起来象高中的英语作业？)

First, I'll pick up where this first part leaves off, comparing and contrasting (sound like a high-school English assignment?)

youdao

And so what we're going to do today is do, one, the first of two lectures.

所以我们今天要讲的，是两次课程的第一部分。

耶鲁公开课 - 新约课程节选

All right, so we can go to today's notes, and in terms of the notes, what we're going to start with is finishing material that's going to be relevant for exam 1, and I told you on Wednesday that actually I'd give you some information today in terms of what you need to do to prepare for exam 1.

好，下面我们进入今天的讲义内容，而依照讲义，我们今天首先,要把第一次考试要求的最后一部分内容讲完，而且我周三曾经告诉过大家,我会在今天把一些信息告诉大家,是关于如何准备第一次考试的。

麻省理工公开课 - 化学原理课程节选