like: giới thông thạo
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
giới thông thạo * ☊ 
experts * ☊
[ giới ] : (1) (classifier); limit, border; (2) group of people, family, community, group
[ thông ] : (1) message; (2) pine tree
[ thạo ] : expert, skillful, adept, good at, proficient, skilled, experienced