地球一小时
地球一小时（英语：Earth Hour）是一个全球性节能活动，提倡拉每年三月个最后一个 / 第二后一个星期六当地时间夜里20:30-21:30，家庭搭商界用户关上弗必要个电灯搭耗电产品一小时。
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