What clothes have you worn in the past 20 years? In Zhengzhou

The weather in Zhengzhou, 20 degrees, is actually very cold in the morning and evening, depending on your work. Students like me are very cold in class. It is recommended to wear that kind of close-fitting sweater with a coat outside, which can keep out the cold in the morning and take off your legs when it is hot at noon (otherwise it will be depressed if you wear it thick). I think it's better to wear thin autumn trousers (it's still related to work, so you don't have to wear them if you don't sit for a long time) because I feel fine now, and my legs will hurt when they get old and cold. When I was in junior high school, I wore pants alone in winter. Now it's not warm to wear colored cotton pants and jeans in winter, so I must protect my legs. Today, I wore a short-sleeved shirt and a thick coat (going home to ride a bike at night), and I wore a pair of long pants. I feel fine, neither cold nor hot. Those who don't wear long trousers in our class all complain about their cold legs. Besides, it is very cold in spring and autumn. Remember not to be too windy, or the old problems will come out again. Hey hey.