我母亲曾患有支气管哮喘的老毛病,时常会发作,尤其是换季的时候。后来母亲听说运动对改善哮喘患者的肺功能、促进呼吸系统功能有良好作用。于是,母亲就按照学来的办法锻炼,坚持了一年 My mother had suffered from the old problems of bronchial asthma, often attack, especially when the season. Later, my mother heard that exercise had a good effect on improving pulmonary function and promoting respiratory system in patients with asthma. So, the mother in accordance with the learned method of exercise, insisted for a year