试题题干
Give a short answer in English to the following question.
What is the function of the Sunject Line?
参考答案
试题解析
通常在称呼语和正文之间插入主题行，以引起对信函主题的注意。它还可以作为归档的指南。
Give a short answer in English to the following question.
What is the function of the Sunject Line?
通常在称呼语和正文之间插入主题行，以引起对信函主题的注意。它还可以作为归档的指南。