And for the private letter , the addresser should grasp another two principles : character and candor .

而对私人书信而言，还应注意掌握另外两条原则：个性和坦率。

What they concern most are both the relative content and the ways they present like how voice and speed present the feeling of the addresser .

他们所密切关系的既有讨论的内容，又有表达的方法，例如，发声和语速是如何来表现说话者的情绪的。

That is to say , the addresser should try to transmit the necessary information through as few words as possible .

也就是说，写信人应该用尽可能少的文字表达需要传递的信息。

Letter of thanks are used to express appreciation for presents , feasts , and helps of the addresser .

感谢信用于感谢他人的馈赠、款待、帮助等。

The author thinks that social deixis consists of four subcategories , that is , addresser social deixis , addressee social deixis , third-party social deixis and stylistic deixis .

本文认为，社交指示可以分为四类，即说话方社交指示、听话方社交指示、第三方社交指示和文体社交指示。