pháo cao xạ 
anti-aircraft gun [ pháo ] : fire-cracker
[ cao ] : (1) tall, high; to be ~ tall, active; to excel; lofty, noble; (2) ointment
[ xạ ] : to shoot (arrows)
Most Common Compounds Set 1:
Most Common Compounds Set 2 :
pháo cao xạ anti-aircraft gun