counterintelligence
Longman Dictionary of Contemporary English 5++LDOCE 5++coun·ter·in·tel·li·gence /ˌkaʊntərɪnˈtelədʒəns/ noun [uncountable] PGPMaction that a country takes in order to stop other countries discovering its secrets 反谍报[反情报]活动
Examples from the Corpus
counterintelligence• If counterintelligence becomes the overriding mission, the obvious answer is the solution first offered by Sen.coun·ter·in·tel·li·gence nounChineseSyllable
to action Corpus country other stop order takes a in that
counterintelligence
coun‧ter‧in‧tel‧li‧gence /ˌkaʊntərɪnˈtelədʒəns, ˌkaʊntərɪnˈtelɪdʒəns/
noun [uncountable]
action that a country takes in order to stop other countries discovering its secrets
coun‧ter‧in‧tel‧li‧gence /ˌkaʊntərɪnˈtelədʒəns, ˌkaʊntərɪnˈtelɪdʒəns/
noun [uncountable]action that a country takes in order to stop other countries discovering its secrets