Theairaroundtheearth的精选

问题详情：阅读文章，根据文章内容，完成句子Theairaroundtheearthiscalledatmosphere.It’suptomorethan600mileshigh.Airplanesflyonlyafewmileshighintheair.Theatmospheremakesthetemperatureontheearthsogoodthatagrea...