convex vertex and concave vertex

vertex-edge adjacent vertex-distinguishing total c

ambassador extraordinary

contingent survey [= extraordinary survey

e (extraordinary)_ray

EGM Extraordinary Genaral Meeting

Eight Extraordinary Channels

Eight Extraordinary Meridians

e-ray(extraordinary ray)

Extraordinary

extraordinary absorption

Extraordinary Angle

extraordinary appeal

Extraordinary Appeals Cases

extraordinary beam

extraordinary budget

Extraordinary Burdens

extraordinary case

extraordinary code