关于环保的英语单词要50个,短一点!最好再来20个关于环保的句子.急用~

环境保护相关英语词汇[1]21世纪议程 Agenda 21 （the international plan of action adopted by governments in 1992 in Rio de Janeiro Brazil（巴西里约）, - provides the global consensus on the road map towa...