If you feel exposed without a text book, you really have to have a textbook, John actually I'm going to reuse that word, John, at least suggest it, on the course website.

如果你觉得没有教科书就缺乏安全感的话，那你真的需要一个了，其实我应该重新使用这个词儿，至少是建议，你能在课程网站上找到。

麻省理工公开课 - 计算机科学及编程导论课程节选

Boy, in this political season, that's a really dangerous phrase to use, right?

嘿，在这个政治的时代里，这个词儿很危险，是不？

麻省理工公开课 - 计算机科学及编程导论课程节选

The grades for the course will be assigned roughly, and I use the word roughly because we reserve the right to move these numbers around a little bit, but basically in the following percentages: 55% of your grade comes from the problem sets, the other 45% come from the quizzes.

课程的评分将会很严格，我用严格这个词儿,是因为我们保留,微调分数的权利，但是基本在以下范围内：,55%的分数来自于问题的提出，另外45%来自于测验。

麻省理工公开课 - 计算机科学及编程导论课程节选