educational activity造句

1、These three forms of activity compose the mental educational activity system together.
三种活动形式共同构成心理教育活动体系。

2、Any educational activity has its aim.
任何教育活动都是有目的的。

3、Ancient Greek sophists educational activity has a profound historical background.
古希腊智者的教育活动有深刻的历史背景。