We must keep exercising, but many girls don't like physical education class, which is probably related to their nature. But physical education class is the best time to exercise, and it is most suitable to exercise with classmates. Doing more exercise helps to burn fat, so you must be active in physical education class. Besides physical education class, you should run a few laps on the playground after class in the morning or evening, which can help you exercise and make your figure slimmer.