were proficient in

language: ko

definitions

  1. had the skill or knowledge to do something well (past tense, plural or formal 'you')
    ko: ～에 능숙했다 (복수형 또는 존칭 '당신')

examples

  1. The team were proficient in handling complex emergencies.

    팀은 복잡한 비상 상황에 능숙했다.