In this book, what I wanna just hit home here, especially for those if you are watching this, is that spiritual life and religious expression is not something that you do once and then you're done.

这本书，我想重申它的精彩之处，观众们，在于告诉你们，精神生活和宗教表达,并不是一次就,可以完成的事儿。

普林斯顿公开课 - 人性课程节选

So first time through the loop, the answer is a. Second time it-sorry, as it enters the loop, at the time it enter exits a the answer is a.

当第一次完成循环的时候，答案是a，第二次，对不起，在第一次进入循环的时候,答案就是。

麻省理工公开课 - 计算机科学及编程导论课程节选