一个很难解释的英语句子------------不是高手勿进
How did Mr.Plowright let people know what he was doing?Why,he advertised,of course.First he opened a shop and then he put up a sign outside the shop to attract customers.
我想知道,这段文章中的Why,是如何翻译?哪个用法?详解,附上例句.