active line

例句：

1. 1. The team is active in promoting environmental protection.
   该团队积极促进环境保护。
2. 2. She is an active member of the community service club.
   她是社区服务俱乐部的积极成员。
3. 3. The new policy is designed to encourage active learning among students.
   新政策旨在鼓励学生积极参与学习。