In class class, the teacher wang deliberately let each student with old items to make a small green items, bibi who craft, see who work the most embody the concept of "environmental protection".

在班队课上，王老师特意让我们每位同学用废旧的物品制作一件环保小物品，比比谁的手艺高，看看谁的作品最体现现“环保”的理念。