like: khái niệm
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
khái niệm * ☊ 
concept, notion * ☊
[ khái ] : tiger; too proud to accept other’s help
OXF3000: 
khái niệm 
concept