Beginner Level Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics
315 Activities V
exact: like: quang trục
VNEN 
quang trục * ☊ 
optical axis * ☊
[ quang ] : light, bright
[ trục ] : (1) axis, shaft, Axis (powers in WWII); (2) to expel, force out; (3) to hoist, jack up, lift