like: liên hệ ngược
Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
liên hệ ngược * ☊ 
feedback * ☊
[ liên ] : (1) union, connection; (2) successive, following
[ hệ ] : branch, system; generation
[ ngược ] : opposite, reverse, contrary, inverse, upstream, up-river, upstream, upside down
[ ngược ] : backwards