tongdalhaeyo
to be proficient in
être compétent en ; être habile en
to master
tongdalhamnida
tongdalhaesseoyo
to have mastered
tongdalhaetda
tongdalhal geoyeyo
will master
tongdalhal geosida
그는 이 문제를 통달해요.
geuneun i munjereul tongdalhaeyo.
He masters this problem.
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