huí​shì

matter

回事 huí​shì
matter noun
used as the final element in constructions like shì 怎么 zěn​me/这么 zhè​me/那么 nà​me... to refer to an event, matter, or state of affairs

There's no such thing as fate.

to report to a master
(literary) to announce a visitor or report a matter to one's master in a traditional private residence