like: chìm sâu xuống
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Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
chìm sâu xuống * ☊ 
to sink down * ☊
[ chìm ] : to sink (a ship), become submerged; hidden, concealed
[ sâu ] : (1) worm; (2) deep, profound
[ xuống ] : to go down, come down, get out (of a car, vehicle)
[ sâu ] : deep
[ sâu ] : deeply
[ xuống ] : down