他没有选择合适的课程。

He didn't register for a proper course.

youdao

寻找一个合适的课程或学校，确定你的教育成本-及更多。

Search for a program or school, determine your education costs - and more.

youdao

你需要弄清获得在线课程的网址和途径，并依据自身需求和兴趣选择合适的课程。

You also need to know how and where to find the lectures, as well as which ones are suitable for your needs and interests.

youdao

And part of it is we want you to learn how to have a catalog, if you like, of different classes of algorithms, so that when you get a problem, you try and map it into an appropriate class, and use the leverage, if you like, of that class of algorithms.

另外我希望你们能学会,如何制作一个关于，算法不同课程的目录，这样当你碰到问题的时候，你可以去找到合适的课程，然后在那门课程中，寻找解决方法。

麻省理工公开课 - 计算机科学及编程导论课程节选