天文台发表预告说:“一个来历不明的物体正在向地球靠近。”这一消息立刻在全世界掀起了轩然大波:“那到底是一件什么东西呀?……”“现在还不清楚,好像是从别的星球来的宇宙飞船。”“如果是到地球上来,得多长时间才能到呢?”“按照眼前的速度来计算,大概得是3天以后吧!” The Observatory issued a notice saying: “An object of unknown origin is approaching Earth.” The news immediately aroused an uproar in the world: “What is it in the end? ...” “Not yet Clear, it seems to be from another planet to the spacecraft. ”“ If it is to come to Earth, how long will it take? ”“ According to the current speed to calculate, probably after 3 days! ”