Swimming is the best way to tone up your body游泳是强身健体的最佳途径

今天的几个句子是有关游泳的：1. It is dangerous to swim beyond this mark. 游泳超出这个标志是危险的。2. I find it amazing that you can't swim. 你不会游泳可使我大吃一惊。3. I am not used to swimming in public pools. 我不习惯在公共游泳池游泳。