like: lúc xâm xẩm tối
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Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
lúc xâm xẩm tối * ☊ 
at twilight * ☊
[ lúc ] : moment, instant, time; when, at the moment that
[ xâm ] : (1) to invade, usurp; (2) dizzy, giddy
[ tối ] : (1) night, evening, dark; (2) very
[ tối ] : dark