我每天第一件事就是要看电子邮件。

I always start the day by going through my email.

《牛津词典》

他当上领导的第一件事就是清除党内的极端分子。

His first act as leader was to purge the party of extremists.

《牛津词典》

顾客遗忘的第一件事就是如何计数。

One of the first things customers forget is how to count.

youdao

So the first thing we'll do is, we'll print the element, in this case it will be a list right? Because it's a list with two lists in it.

因此这儿我们要做的第一件事，就是要显示元素，在这儿元素就是数组了对不对？,因为这个数组包含了两个数组。

麻省理工公开课 - 计算机科学及编程导论课程节选

The first thing they are supposed to say is good morning or good afternoon, and then they say, what are your questions?

他们应该说的第一件事就是,早上好或下午好，然后会问，你的问题是什么呢？

麻省理工公开课 - 固态化学导论课程节选

So the first thing we're going to do today is look at a different form of competition which is called Bertrand competition.

所以今天我们要做的第一件事,就是来学习一个不同形式的竞争,叫伯川德竞争

耶鲁公开课 - 博弈论课程节选