练习题的英文：
1.exercises; problems of an exercise
The exercise is that difficult!
练习题那么难！
When you' ve copied down the exercise that' s on the blackboard, we' ll go on with the next one
等你们抄好黑板上的这道练习题，我们继续做下一道练习。
n.
1.[C,U]运动，锻炼
2.[C]练习，习题
3.[C]【军】演习，操练
4.（特定的）活动，行动( in)
5.（权力，权利等的）行使，运用( of)
6.【美】仪式，典礼
7.礼拜，宗教仪式
v.[T]
1.锻炼，操练，怜惜
2.运用，行使
3.使忙碌，使担忧，使惊恐
v.[I]练习，运动
The exercise is that difficult!
练习题那么难！
morning exercises and setting - up exercises duringthe break
早操和课间操
Exercise stimulates the flow of blood.
锻炼促进血液循环。
n. 难题，困难；逻辑题
It was a complex problem.
这是一个复杂的问题。
Is the problem that easy?
问题有那么简单吗?
This is a prime problem.
这是一个有关质数的问题。
n. 运动，锻炼；练习，习题
v. 锻炼，操练，练习
The exercise is that difficult!
练习题那么难！
morning exercises and setting - up exercises duringthe break
早操和课间操
Exercise stimulates the flow of blood.
锻炼促进血液循环。