#2017关于保护环境的英语作文带翻译 搜索结果
ProtectingtheEnvironmentEnvironmentalproblemsarebeingmoreandmoreseriousallovertheworld.Forexample,carshavemadetheairunhealthyforpeopletobreatheandpoisonousgasisgivenoffbyfactories.Treesonthehillshavebee