摘要
How happy you are may depend on how happy your friends’friends’friends are, even if you don’t know them at all. And a nicenext-door neighbor has more effect on your happiness than yourfather’s mood.
How happy you are may depend on how happy your friends＇ friends＇ friends are, even if you don＇t know them at all. And a nice next-door neighbor has more effect on your happiness than your father＇ s mood.
