游泳时，正确的呼吸是嘴和鼻在水中慢慢呼气，抬头露出水面时把最后的余气用力呼出，并张嘴快速吸气。但由于初学者在水中新陈代谢的提高、水对身体各感官的物理刺激，以及怕水的心理，这一简单的动作，做起来却很困难，往往会出现在水中不能顺利呼气，抬头后不能或不敢张... Swim, the right breath is the mouth and nose slowly breathe in the water, looked up and exposed the surface of the residual force forced exhaled, and mouth quickly inhale. However, due to the beginner’s metabolism in the water, the physical stimuli of the water to the senses of the body, and the psychology of fear of water, this simple action is very difficult to do. It often occurs in the water and can not be exhaled smoothly. Or afraid to Zhang ...