doexercise可數嗎

　　例句

　　1.Could we take a walk? I feel like a little exercise.

　　我們去散散步好嗎？我想活動一下。

　　2.Do exercise one for homework.

　　家庭作業做習題一。

　　3.As a judge, she tried her best to exercise her power.

　　作為法官，她盡力行使自己的權力。