没有课本，我不得不在电脑屏幕上阅读、做练习，这伤害了我的眼睛。

Without my textbooks, I had to read and do exercises on a computer screen, which hurt my eyes.

youdao

他们都没有课本。

None of them have textbook.

youdao

心里一直在嘀咕：又不是没有课本，抄了也记不住，谁愿意做抄书那笨事？

Heart has been whispered: they is not without textbooks, copied also remember who asked to copy it is willing to do stupid things?

youdao

I think you may have defined it already, but I couldn't find a definition of strictly in the book we have.

我想你之前已经定义过了,但是我在课本里没有找到,“严格”的定义

耶鲁公开课 - 博弈论课程节选

Because there are so much that you can learn from the language that doesn't involve textbook reading.

因为你可以从口语中学到很多课本阅读没有的东西。

学外语的时候 - SpeakingMax英语口语达人

That is the good news.The bad news is there isn't a text that fits this syllabus, so we choose readings from various sources.And the text that I have chosen is the best of a bad lot.

那是个好消息，坏消息是,没有与课程大纲对应的课本，我们从很多的资源中选取阅读材料,我选的课本不过是糟粕中的精华。

麻省理工公开课 - 固态化学导论课程节选