quack [kwæk]

以下由轻松背单词网站提供

n.庸医；江湖医生；冒充内行的人；骗子

to make the usual sound of a duck

He describes himself as a doctor, but I feel he is a quack. 他自称是医生，可是我感觉他是个江湖骗子。
The quack was stormed with questions. 江湖骗子受到了猛烈的质问。