VIE-ENG DE-ENG SEA LANG DICT CTD LESSONS RANDOM CEFR EXPERT VietnamesePod 126LESSONS GLOSSIKA SAIGONESE 150 THEMEN 3600 LTWF WORDTYPE FREQUENCY ARTIFICIAL LANGUAGES 1800 H.I.M.Y:M. OXFORD 32000 TED TED2 SEA LANG BITEXTS
4761 specialize chuyên môn hóa v
EXPRESSION: specialize