like: hải miên
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Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
hải miên * ☊ 
sponge * ☊
[ hải ] : sea
[ miên ] : (1) Cambodia, Cambodian; (2) to sleep; (3) cotton; (4) to be long