I'm well aware that you think I'm an ignoramus about such matters.我很清楚，你认为我对这类事情一窍不通。I'm a complete ignoramus where computers are concerned.在电脑方面，我完全是个门外汉。I can't believe they let an ignoramus like that run the company.我无法相信他们竟让那样一个无知的人管理公司。I was a scientific ignoramus.我是个科学盲。