like: cái lý do
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Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
cái lý do * ☊ 
reason * ☊
[ cái ] : (1) [CL for most inanimate objects, isolated events]; (2) object, thing; (3) female; (4) main, principle; (5) solid substances in soup (as opposed to nước, the liquid, broth)
[ lý ] : physics; reason, principle, law
[ do ] : because of, caused by, due to; derived from; on; by (a person); to derive from, cause
[ cái ] : piece