save the water,recycle the water(节约用水,循环用水)
reduce the emission of cars(减少汽车排放)
plant more tress(多植树)
protect the endangered animals((保护濒临灭绝动物)
all in all,it's our obligation to protect the environment(总而言之,保护环境,人人有责)
还有什么要求,再给我留言!