nghi phạm chính 
prime suspect [ nghi ] : (1) air, manner; (2) to be suitable; (3) to doubt, suspect, become suspicious
[ phạm ] : (1) to take; (2) to commit (a crime), offend
[ chính ] : main, principle, chief; self, own; exactly, just, precisely
Most Common Compounds Set 1:
Most Common Compounds Set 2 :