三角的,由三人争取第一名的
Three-cornered \Three"-cor`nered\, a. 1. Having three corners, or angles; as, a three-cornered hat. 2. (Bot.) Having three prominent longitudinal angles; as, a three-cornered stem.
three-cornered adj 1: having three corners; "a three-cornered hat" 2: involving a group or set of three; "a three-cornered race"