like: hệ số
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Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
hệ số * ☊ 
coefficient, weight (of subject in exam) * ☊
[ hệ ] : branch, system; generation
[ số ] : (1) amount, number, figure, quantity, size (of clothing), digit, edition; digital; (2) gear (of a car); (3) destiny, fate, lot
[ số ] : number