The definition of happiness is that when I am hungry,the person who has a meat bun in his hand is certainly happier than I am; when I am cold,the person who has a heavy coat is certainly happier than I am; when I need to go to the bathroom,the person who occupies the single stall is certainly happier than I am.
the happiness is , i'm hungry, when i saw someone taking a baozi with meat spice inside, he was much happier than me, when i saw someone wearing a big coat, he much happier than me, i wanna go to the restroom, but only one room left, he stays inside, then, you are happier than me,