n.骗人的治疗；大吹牛；骗子的行为

Don't be taken in he's just a quack. 可别上当--他纯粹是江湖医生。

That doctor is just a quack, he should be reported. 那医生是个蒙古大夫,应该被检举。

She discovered that the man was a quack. 她发现那人是个庸医。

That quack caused me more harm than the disease did. 比起疾病,那个冒牌医生对我的伤害更深。

Some scientists relegate parapsychology to the sphere of quackery. 一些科学家把灵学归类到骗术范围。

That quack cause me more harm than the disease do. 比起疾病，那个冒牌医生对我的伤害更深。