The new study shows that happiness spreads through social networks like an emotional virus - a virus people would be happy to catch.

VOA: special.2009.01.21

why happiness is not important may be on the people who would argue otherwise-- we will talk about that argument later.

快乐为什么是不重要的重担可能落在,执否定观点的人身上-,我们会在以后谈到这个论点。

哈佛公开课 - 幸福课课程节选

Happiness for me, would be... probably

对我来说，幸福就是……很可能

幸福的定义 - SpeakingMax英语口语达人

Because my question, ?" my guiding question was "what would contribute to happiness?"

因为我的问题，我的引导性问题是“什么会对幸福有贡献“

哈佛公开课 - 幸福课课程节选

one of the answers we should receive would be: " "It is happiness."

我们应该得到的一个答案是：,“是快乐“

哈佛公开课 - 幸福课课程节选