There are three main groups of exercises: aerobic exercises, callisthenics and anaerobic exercises.

主要有三种运动: 有氧运动 、 体操和无氧运动.

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Callisthenics can improve joint flexibility and muscle tone.

体操能提高关节的柔韧性和肌肉的和谐性.

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Shall we go to the gym for a workout ? I like to do callisthenics.

我们到体育馆去练习 吗 ?

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