Practice holding your breath, silently count until you can't stand it, and gradually challenge your limits. One is to eliminate one's fear of water, the other is to lay a good psychological foundation for learning to swim in the pool, and the third is to observe people who can swim and swim well before entering the pool to let them know what they are doing.

2. Look for buoyancy in the shallow pool, take a deep breath and close the air mass into the water. Although I feel sinking, I will slowly float up from the water in an instant. Don't inhale your face into the water, or you will suffocate. You can only spit water slowly in water, that is, exhale, but spitting water in water is usually supplemented by your nose.

3. After finding the sense of buoyancy, you can turn the ball into the free stretching and paddling of the limbs and find the feeling of moving in the water, so that you can reach out, hook your feet and clamp your legs, float straight for a while, and then close your hands and close your legs. This is a coherent action of holding your breath and practicing breaststroke. When you are proficient, you can look up and take a breath when you stop.

4, strengthen practice, hand, foot, ventilation coordination practice, but we must pay attention to the action norms, as long as the practice step by step, do not rush, generally 3-5 days to learn.

Of course, this is ok for physical exercise. If you take part in a competition or something, you have to practice systematically.