supposedlysup•pos•ed•ly /sə'pəʊzɪdlɪ/

adv 根据推测；据称；大概

• an article supposedly written by the same author 据推测系由同一作者写的文章

• In April 1912 this supposedly unsinkable ship hit an iceberg. 1912年4月这艘被称为永不沉没的轮船撞上了一座冰山。