undercover
/ˌʌndə(ɹ)ˈkʌvə(ɹ)/
Значение 1
acting secretly to gather information.
“The detective worked undercover to catch the thief.”
Добавить в My Deck
Значение 2
doing secret work for the police
“The undercover officer infiltrated the dangerous criminal gang.”
Добавить в My Deck