A cold coffee cup in the restaurant
Uninhabited rooms
No-one's modern train
Inside the uninhabited subway
Books on the desk before the blackboard
Domino domino in S shape
A bunch of papers tied up
Garbage can earthen plant
Charts and graphs of environmental statistics
Three white pieces of paper
It's a good paper
Red apples from the first book on the blackboard
Books on the classroom table
Close-up of squeezed plastic bottles
A row of recycled garbage
A bunch of colored bottles of lids
Five environmentally friendly bottles recycled
The paper on the trash can in the box
Environmental protection of waste paper
Waste recycling in paper boxes
Five Waste Bottle Recycling Signs
A black and white gift box card
A lot of black rocks and a white stone
Scissors are used to cut green Sage
The green leaves on the branches