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315 Activities V
exact: like: bậc ba
VNEN 
bậc ba * ☊ 
ternary * ☊
[ bậc ] : (1) step, rung, rank, level, grade, degree; (2) [CL for famous, great people, heroes]
[ ba ] : (1) three, tri-; (2) father; (3) wave, ripple