earth hour is a global

Earth Hour is a message of hope and a message of action.这句话的 Earth hour is a ______ for everyone to do a bit for our Eart 英语翻译Global warming is an increase in the earth's temperature it is human activities on the earth that are to( ) global wa earth hour 看电视 英语作文 earth hour earth hour怎么读 earth hour前加不加the Why has Earth Day become a global celebration?Because more a 急求关于The earth,a global village 世界是个地球村 英文演讲稿 The simple answer is that it is a global trading earth-hour 的英语阅读?