active glassy material

例句：

1. 1. The team is active in promoting environmental protection.
   该团队积极推广环境保护。
2. 2. The new policy will make the economy more active.
   新政策将使经济更加活跃。
3. 3.The young students are active in participating in extracurricular activities.
   这些年轻学生积极参与课外活动。