中国经典古籍有云，雷声会惊醒冬眠或蛰居的昆虫。

According to classic Chinese writings, this thunder would wake up insects that had hibernated or the winter.

youdao

俗语有云，你一无所有来到这俗世。

YOU come into the world with nothing, the saying goes.

youdao

俗话有云，无法测量的东西是不可控的。

As the old saying goes - what is not measured cannot be managed.

youdao

But just realize as a teaser coming for problem set 1 will be instructions on how to activate your so called cloud account and it's on the CS50 cloud that you'll be writing your programs, compiling your programs, testing your programs, running your websites ultimately.

如果大家觉得难的话,习题集1上有一些说明，教你如何,激活你的云账户,因为你们只有在CS50云上才能编写程序，编译，检测，并最终运行。

哈佛公开课 - 计算机科学课程节选