Cardiorespiratory fitness, or aerobic fitness, is the ability of the circulatory and respiratory systems to deliver oxygen to skeletal muscles during sustained physical activity or exercise.
心肺适能，或有氧适能，是指持续体力活动或锻炼时机体循环系统和呼吸系统向骨骼肌供氧的能力。
Not only is it a means of physical exercise but it also assists in sharpening children's ability to focus.
它不仅是一种体育锻炼方式，也有助于培养儿童集中注意力的能力。
The main problems are paying great attention to physical education teaching and neglecting the cultivation of self-exercise ability;
注重大型体育场馆设施建设，忽略体育场所的多功能使用率和维护管理。
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