translation.en: Average happiness is, of course, inadequate, because it doesn't speak to the moment-by-moment experience, and so this is what we think it looks like when you layer in moment-to-moment experience.
translation.zh: 平均的幸福， 当然是不够的， 它不能表达 不同时刻的经历。 所以我们觉得 当你叠加进不同时刻的经历后 幸福曲线图应该是这样的。