There are so many people, Wu Wei. I hope to control the flow of people. In addition, the aunt who sweeps the floor trains a young man in front of so many people. As for? Everyone is not easy. Mopping the floor as long as it is clean. It has to be difficult for people. In front of so many people, the young man is embarrassed. I and many aunts and uncles around me don't look at the aunt mopping the floor. As for it, mopping the floor. Just aunt you can.