like: trừ khi
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
trừ khi * ☊ 
except, unless * ☊
[ trừ ] : to subtract, exclude, eliminate, except; to pay off, reduce; except
[ khi ] : occasion, time (when something happens), when, at the time of, if