確有其事

(confirm to be) true / authentic

to have; there is / (bound form) having; with; -ful; -ed; -al (as in 有意[you3 yi4] intentional)

matter / thing / item / work / affair / CL:件[jian4],樁|桩[zhuang1],回[hui2]

his / her / its / their / that / such / it (refers to sth preceding it)

authenticated / solid / firm / real / true