I don't get much exercise sitting in the office all day.

我整天坐在办公室，很少运动。

The doctor advised him to take / do more exercise.

医生建议他多运动。

morning / stretching exercises

早操/伸展运动

vocabulary / military exercises

词汇练习/军事演习

Do the exercises on page fifty.

做第50页的练习。

You should exercise more so as to keep energetic.

你应当多锻炼以保持精力充沛。

Horses get fat and lazy if they are not exercised.

马不训练就会增膘、变懒。

Swimming exercises all the major muscle groups.

游泳能锻炼全身的主要肌肉群。

exercise one's rights as a citizen

行使公民权

Caution must be exercised when you operate this equipment.

使用这台设备时你务必要小心。