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Core Words Familarize yourself with the 'core words'.
Etymology Explore the origin of the 'core words'.
Wordsense Learn about the wordsenses of the english term.
COMPOUNDS
đi xuống 
to go down
đi xuống lầu to go downstairs
đi xuống nhà to go downstairs
đi xuống to go down đi xuống lầu to go downstairs đi xuống nhà to go downstairs