In summer, the weather is very hot. Swimming is popular. I like swimming, too. I think swimming is a very interesting sport. It helps us build a healthy body. And it makes us cool in the hot summer days.

Besides, we can call several friends to swim together. Also, we can play and have fun in the swimming pool. Anyway, swimming is a joyful activity in the hot summer.

参考译文

夏天天气很热，游泳很受欢迎。我也喜欢游泳。我认为游泳是一项有趣的运动。它帮助我们建立一个健康的身体，使我们在炎热的夏天感到凉快。

除此之外，我们可以叫上很多朋友一起游。我们还可以在游泳池里玩耍。不管怎么说，游泳在夏天是一项快乐的活动。