Roles 释义与例句 name 1. A surname. 相关短语 theta roles thematic roles breeches roles pants roles trouser roles bit roles gender roles title roles theta role = thematic role thematic role 解元角色, 主题角色(指与动词相关的名词短语的功能, 如施动者或受动者) breeches role pants role trouser role bit role gender role 性别角色