It's deliberate that a lot of the examples in lecture are fairly short and bite-size so that you can actually focus on pulling out the key ideas without getting distracted by line and lines of code.

很多的演讲中的例子,是短小的,因此你们可以集中于提取其中的主要思想,而不是被一行行的代码给分心。

哈佛公开课 - 计算机科学课程节选

People were pulling money out of banks because they feared that if the bank failed, then they would lose their money; it created a huge crisis in 1933.

人们纷纷从银行提取现金,因为他们担心,万一银行破产,他们就会血本无归,这种情况导致了1933年经济危机

耶鲁公开课 - 金融市场课程节选