n.防蝇去毛，结块污毛，（剪毛前）羊身除下的粪污碎毛； 英英释义： crutch[ krʌtʃ ]n.a wooden or metal staff that fits under the armpit and reaches to the ground; used by disabled person while walkinganything that serves as an expedient"he uses drugs as a psychological crutch"