As far as i know, knowing how to swim is one of the most important skills in our life. There are many benefits of that. Swimming not only helps me increase my physical health but it also makes me reduce stress after school. Moreover, I used to save my friends from drowning thanks to ability of swimming. That was amazing! An other benefit is that my swimming skill helps me get more outstanding results compared to my friends. In conclusion, the better we swim, the more opportunities we get to help our relatives and make me to become a more useful person. sửa câu 2 lại thành câu kép giúp e ạ