NASAsuccessfullylandeditslargestandmostsophisticatedscienceroveronMars,asthespacecraftPerseverancetoucheddowninanancientriverdeltathatmaycontainsignsofwhethertheplaneteverharboredmicrobiallife.
一句话概括：美国宇航局毅力号火星探测器成功着陆并开始探测火星是否有生命迹象。
值得一看的词汇：
rovern.漫游者，探测器
sophiscatedadj.复杂的eg.highlysophisticated