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

主要有三種運動: 有氧運動 、 體操和無氧運動.

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Callisthenics can improve joint flexibility and muscle tone.

體操能提高關節(jié)的柔韌性和肌肉的和諧性.

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

我們到體育館去練習 嗎 ?

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