体育锻炼exercise不可数的；exercise既是可数名词，同时也是不可数名词。exercise泛指“锻炼”时，做不可数名词，表示“体操”或“练习（题）”时是可数名词。

扩展资料

Diet and exercise are obviously important.

显然饮食和运动是重要的。

You shouldn't exercise on a full stomach.

你不应该吃饱了就运动。

Which is better exercise ─ swimming or tennis?

游泳和网球哪种运动比较好？

The heart responds well to energetic exercise.

心脏对剧烈运动反应良好。

Deep breathing exercises will help you relax.

深呼吸运动有助于放松自己。

Exercising regularly will pay pidends in the end.

经常运动最终会对身体大有好处的。