like: màng cứng
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
màng cứng * ☊ 
dura mater * ☊
[ cứng ] : hard, firm, rigid, tough
[ cứng ] : hard
[ cứng ] : stiff