单选.Bob is the black sheep(theblacksheep划线的意思of his family.1,幸运儿2,败家子3,顶梁柱4,宠

问题描述:

单选.Bob is the black sheep(theblacksheep划线的意思of his family.1,幸运儿2,败家子3,顶梁柱4,宠

幸运儿
相当于 lucky dog