I often swim, almost three times a week. Swimming learning is a slow process, and progress is slow. Under the condition of ensuring three trips a week, it should take at least four months or even half a year from novice to expert. But swimming is a great exercise, which is good for skin, body shape and weight loss. Most importantly, it is also a guarantee for a person's life.
It seems that you still have to learn to swim:
First of all, it is impossible to teach men and women separately in the same class and group of students, whether it is a swimming class in a university or a swimming pool in general. The ideal is beautiful, but the reality is cruel, unless the coach is overwhelmed, just like the Monkey King, it changes seventy-two! Otherwise, how can you separate yourself and stare at the movements of male students here? We have to use clairvoyance to see how the female students there study! By the way, in that case, you have to have a pair of Wan Li voice, and you can hear clearly when you speak. Otherwise, in the noisy water, how can the other party hear!
Secondly, you must wear a formal bathing suit and swimming trunks when swimming. Only women can wear swimsuits and men can wear swimming trunks. Therefore, the subject said that it is normal for boys to be topless. Have you ever seen a boy swimming in a bathing suit? Wouldn't it be strange to wear it?
Let's start with swimsuits, which are usually worn by women. Divided into one-piece swimsuit and split swimsuit. If they are conservative, they can choose one-piece swimsuits, which will not be too exposed. Split swimsuits, some of which are more like ordinary bikinis, are different from bikinis, so sometimes what you see in the pool is not bikinis, but swimsuits, which are just personal likes. Wear it if you like, as long as it meets the standards of swimsuits and the rules of swimming pools, you can swim.