本文作者： 21st
土卫六荣登最宜居星球榜首。词数 120 建议阅读时间 3分钟MELBOURNE (墨尔本), the Australian city, was named the most livable city in the world this year. Recently, scientists have picked out the most livable alien worlds. Saturn’s (土星的) moon Titan (土卫六) was first on the list.