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如何保护环境 Good environment can make people feel happy and fit . To improve the environment means to improve our life. We should plant more trees and flowers around us . We shouldn t cut th down . We should stop factories from pouring waste water into the river and waste gas into the air. Whenever we see litter on the ground , we should pick it up and throw it into dusbins. Never spit in public. Don t draw on public walls. It s our duty to protect the environment | 
