It is a low-impact aerobic exercise, the physical development of children and adolescents are of great help.
它是一项低冲击的有氧运动，对青少年儿童的身体发育有很大的帮助。
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。
Any physical activity that makes your pulse get quicker and your breathing get deeper is a kind of aerobic exercise.
任何使你的脉搏加快，呼吸急促的体力活动都是有氧运动。
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