打开你们的书包。

Open your school bags.

youdao

打开你们的书读下面的注释。

Open your books and read the notes below.

youdao

威廉姆斯先生：是的，请打开你们的书。

Mr. Williams: Yes, please open your books.

youdao

global c Well, let's go ahead and open up global dot c, or you can follow along up here.

好的，我们继续打开，或者你们可以跟随这里个地方。

哈佛公开课 - 计算机科学课程节选

So, here's the reading. So, for example today, there is a vision statement, administrative details and I'm going to get a little bit of teaching towards the end. And, if you wanted to, you could crack the book and look at chapter one.

这是阅读材料，例如说，今天，有一个远景说明，行政管理的细节,末尾的时候我会讲一些教学的内容,如果你们想要的话，你可以打开那本书，翻到第一章。

麻省理工公开课 - 固态化学导论课程节选

When you open it up and look at the table of contents, you see titles of poems, and underneath those titles are little legends and moralizations.

当你们打开看到目录时，看到诗歌的题目，下面,是些小的传说故事和教化故事。

耶鲁公开课 - 现代诗歌课程节选