it’s our duty to protect the environment. i think we should keep our schools and cities clean and tidy.
here are some of my views：
don’t spit in public and throw rub*sh *rywhere .and we should plant trees and flowers around the city. it’s important to recycle * and water. don’t [复习必备 | 海量免费学习*资源尽在“学而思轻课app”
