你知道4月22日是一个什么日子?为了让地球村的村民认识到生存环境日趋恶化、合理利用大自然的各种资源、维护地球的生态平衡、做到代代可持续发展,1970年的4月22日,哈佛大学学生丹尼斯发起并组织保护环境的活动,并得到包括美国在内的世界各国民众的响应,联合国后来把这一天定为“世界地球日”。然而,这个日子似乎很少有人关注,每年都是悄无声息地过去了。 Do you know what day April 22 is? In order to let the villagers of the global village realize that the living environment is deteriorating, various resources of nature are used rationally, the ecological balance of the earth is maintained, and sustainable development is achieved for generations, 4 of 1970 On the 22nd, Harvard student Dennis initiated and organized activities to protect the environment and received response from the peoples of the world, including the United States. The United Nations later designated this day as “World Earth Day.” However, there seems to be little attention on this day, and every year has passed quietly.