Tìm kiếm
undercover
adj
Ví dụ
The undercover journalist exposed corruption in the local government through their investigative reporting.
They operated under an undercover identity to protect their true identity from the suspects.
He worked as an undercover investigator, posing as a regular customer to catch shoplifters.
The undercover officer observed the suspects sniffing methamphetamine in the abandoned building.
The secret agent carefully stashes disguises and gadgets in a concealed compartment for undercover missions.
