Selling by post is a new type of marketing with high potential. 邮售是一种很有发展潜力的新型销售方式。
Author thinks that we should admit it because of its advantages in selling which are determined by its special form and content. 传销的特有形式和内容决定其在销售上具有传统销售方式不可比拟的优点，应当予以承认。
