Summer is the second season in the year. In the Northern Hemisphere, summer goes from June to August. Summer is the hottest season in the year. Sometimes, the temperature reaches 40°C. Many people can not stand such hot weather. So they always stay indoors. At night, people would go out for a walk. Swimming is the most popular sport in summer. It brings cool to people.
夏天是一年中的`第二个季节。在北半球，夏天从六月持续到八月。夏天是一年中最热的季节。有时候温度高达40度，很多人无法忍受这样的热天气。所以他们经常待在家里不出门。晚上，人们会出门散步。游泳是夏天最受欢迎的运动，它给人们带来凉快。
