He may have a hard job selling that argument to investors.他可能得磨破嘴皮才能让投资者接受那个观点。Richard's mother badgered him into taking a Spanish wife.理查德的母亲磨破嘴皮子，终于说服他娶了个西班牙太太。You can tell her to clean her room until you are blue in the face, but she won't do it.任凭你磨破嘴皮叫她打扫自己的房间，她也不会去做的。