theo hình vòng cung 
in the form of an arc, arc-shaped [ theo ] : to follow, believe in; according to, on, at, in
[ hình ] : form, shape, appearance, photograph, picture
[ vòng ] : circle, ring, round
[ cung ] : (1) to supply; (2) bow (used with arrows)
Most Common Compounds Set 1:
Most Common Compounds Set 2 :