Hello, kids! The summer vacation is coming soon. It's from July 1st to August 31st. The weather is usually hot. More and more people like swimming in summer. Swimming is a good sport. It is the best way(方式)to tone up your body. Safety(安全)comes first! Here is some advice(建议)for you:
·Go swimming with your parents.
·Don't get into the water if you see the sign.
·Don't eat too much before you go swimming.
·Do some warm-up exercises before you swim.