like: phủ kín
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Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
phủ kín * ☊ 
to cover * ☊
[ phủ ] : to cover, overlay; palace, residence; not, not, against
[ kín ] : secret, private, confidential
[ phủ ] : covered