purportedly
adverb/pəˈpɔːtɪdli/
/pərˈpɔːrtɪdli/
(formal)- used to say that something has been stated to have happened or to be true, but this might not be the case
据称的；传言的 - a letter purportedly written by Mozart
一封据传是莫扎特的亲笔信
- a letter purportedly written by Mozart