To sum up, it is a word, tired. My side is Shanghai, although it is not the urban area, it is still a relatively prosperous area, and the traffic, especially on Sunday evening, can be imagined. I spent four hours cleaning tables, collecting garbage, taking out garbage, cleaning plates, handing plates, mopping the floor and sweeping the floor. Anyway, it was the most tiring work. I hardly stopped and ran around the store for four hours. After two hours, my feet can't stand it. If you insist on metaphor, I think it's braised pig's feet. But I can't rest, I can't even sit down. After four hours, I won't say sit down, and I haven't even taken a sip of water. I'm not saying it's not good. I think it's a good thing for students, that is, I can feel the difficulty of working alone in advance. You can see all kinds of people here. Father or mother with children, a group of middle-aged aunts, or girlfriends dinner.