knight-errant
n.（名词）【复数】 knights-errant[nots.-] A knight, often portrayed in medieval romances, who wanders in search of adventures to prove his chivalry.游侠骑士：经常在中世纪传奇故事中描绘的骑士，他四处漫游冒险以证明自己的骑士风度One given to adventurous or quixotic conduct.侠义心肠的人，堂吉诃德式的人物：喜欢冒险或作出堂吉诃德式行为的人
【引伸】
knight.-er.rantry
