上当: taken in (by sb's deceit), to be fooled, to be duped...
无能: incompetence, inability, incapable, powerless...
体面: dignity, face (as in losing face), honorable, creditable, (of sb's appearance) presentable, respectable...
谦虚: modest, self-effacing, to make modest remarks...
倒卖: to resell at a profit, to speculate...
素不相识: to be total strangers (idiom)...
