(in compound adjs 用以构成复合形容词)
1 with the specified number of corners 有某数量边角的
*a ,three-cornered `hat.
2 with the specified number of participants 有某数量参与者的
*The election was a three-cornered fight between Conservatives, Labour and SLD. 这次选举是保守党、工党以及社会民主党三方的较量.