lớp tu nghiệp 
refresher course, seminar, workshop [ lớp ] : (1) class, grade, rank, layer, bed; (2) classroom
[ tu ] : (1) to drink straight out of a container; (2) to blush, be embarassed; (3) to enter a religion; (4) to repair; (5) beard
[ nghiệp ] : trade, profession; karma
Most Common Compounds Set 1:
Most Common Compounds Set 2 :