What is the battle between summer and summer?

Summer and summer can compete with winter.

Summer and winter are antonyms of seasons. Summer and summer represent hot weather and winter represents cold weather. There are obvious differences in temperature, weather conditions and people's feelings between the two seasons. In summer, the temperature rises and the sunshine is strong, so people are prone to sweating and thirst. It is necessary to pay attention to sun protection and hydration. In winter, the temperature drops and the weather is cold, so people need to keep warm, pay attention to cold protection and increase calorie intake. So summer and winter are completely opposite seasons, and there are obvious differences in both temperature and people's living habits.