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Compounds Expand your vocabulary by studying more complex words built by the 'core words'.
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TOPIK 11000 KOREAN WORDS

HSK 3.0 11000 CHINESE WORDS

ENGLISH 6000 THEME WORDS

OXFORD 5000 CORE WORDS

TANAKA 6000 CORE WORDS

sau khi xem thư xong after looking at the letter
[ sau ] : again; next; after, behind, afterwards
[ khi ] : occasion, time (when something happens), when, at the time of, if
[ xem ] : to see, watch, look
[ thư ] : letter; to write
[ xong ] : to finish, end, be complete; then, after ~ ing