隱瞞不報

to cover up (a matter that should be reported to the authorities)

secret / hidden / concealed / (prefix) crypto-

to lean upon

to conceal / to hide (a taboo subject) / to cover up the truth

to conceal from / to keep (sb) in the dark

no; not so / (bound form) not; un-

to announce / to inform / report / newspaper / recompense / revenge / CL:份[fen4],張|张[zhang1]