对于你们当中那些有点不确定的人，我们确实有一段视频，你们可以看看发生了什么。

For those of you who are a bit unsure, we do have a video you can watch to see what happens.

youdao

你们可以看看教科书后面的时间表，看看不同文化背景下同一时间发明的东西，就知道我所说的了。

You can look at the timeline charts in the back of your textbook to see when things were invented in different cultures at about the same time to see what I'm talking about.

youdao

有些重要的事情在发生，通过它你们可以看看自己。

There are important things that are happening which you can see for yourself.

youdao

And what I'm showing here is not on your notes, if you're interested you can look it up in your book.

我这里展示的没有在你们的讲义里给出，如果你们感兴趣的话可以看看课本。

麻省理工公开课 - 化学原理课程节选

Last year's event was attended by 1,000 plus attendees and it will be an opportunity for you to really mingle and to conclude the course with a look at your and other friends' projects.

去年的活动有1000多人参加,借此机会你们可以互相学习,可以看看朋友的项目,以此作为这个课程的结尾。

哈佛公开课 - 计算机科学课程节选

And I know it's kind of, you can see it on your handout, it has the rest of the pieces over here.

我可能会去求它们的长度，我知道这有点儿，你们可以在课堂手册上看看。

麻省理工公开课 - 计算机科学及编程导论课程节选