例句：

　　經常性鍛煉對于身體健康有直接影響。

　　Regular exercise has a direct bearing on fitness and health.

　　這樣的運動可以鍛煉腰部的肌肉。

　　This exercise will work the muscles of the lower back.

　　你應該把鍛煉和健康飲食結合起來。

　　You should try to combine exercise with a healthy diet.