基本解释[兽]防蝇去毛.[纺]结块污毛.[pl.；](剪毛前)羊身除下的粪污碎毛同根派生 英汉例句He uses his wife as a kind of crutch because of his lack of confidence.他缺乏自信心，总把妻子当作主心骨。Religion was her crutch in times of sorrow.宗教是她忧伤时依赖的支柱。