English-Chinese/School physical education lessons is declining in many countries

Another cause of children of lack of exercise is that physical activities such as cycling, school physical education lessons, and organized sports is declining in many countries.

儿童缺乏锻炼的另一个原因是许多国家的体能活动，如骑自行车，学校体育课和有组织的体育活动正在减少.