After a few days'business trip, I worked overtime day and night, and finally came out as if I were happy after class. By 6:30 p.m. in the old street, the twilight was gradually falling, and the old street lights were dim and smelled strong. After drinking a bowl of milky tea with slightly salty taste, I strolled down the street. The wind in Hohhot was a little temperamental and the hair was flowing freely.