课间操的英文：
setting-up exercises during the break

参考例句：

morning exercises and setting - up exercises duringthe break
早操和课间操

setting是什么意思：
n. 环境；背景；布置；底座；设定；安装
v. set的现在分词

perseverative set
固着心向

plastometric set
塑性变形

A coded character set whose character set is an alphabetic character set
一种编码字符集,它的字符集是一种字母字符集。

exercises是什么意思：
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。

during是什么意思：
prep. 在…整个期间；在…期间的某个时候

during one's minority
未成年期间

Drinking is not advised during pregnancy.
建议妊娠期不要饮酒。

The capture was conducted during midnight.
俘虏行动在午夜举行。