like: thẳng góc
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Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
thẳng góc * ☊ 
perpendicular * ☊
[ thẳng ] : straight, direct
[ góc ] : angle, corner, position
[ thẳng ] : straight
[ góc ] : angle
[ góc ] : corner