正式而且生硬的备忘录、文件已经过时了，而非正式、易理解的书面交流则开始流行。
Formal, stilted memos and documents are out; informal, accessible written communications are in.
一个合同可以是正式或者非正式的，口头的或者书面的。
数据表明话语标记语在正式的和非正式的英语口语和书面语中出现相当频繁。
Statistics show that they occur frequently, in both formal and informal English speech and writing.
第二章分析英语口语体与书面体的差异，并进一步把口语从其正式程度上分为正式体与非正式体，探讨听力理解的性质及其外语学习者所面临的困难。
Chapter Two analyses the differences between spoken and written language, classifies speech into formal and informal varieties, and probes into the nature and difficulties in listening comprehension.
第二章分析英语口语体与书面体的差异，并进一步把口语从其正式程度上分为正式体与非正式体，探讨听力理解的性质及其外语学习者所面临的困难。
Chapter Two analyses the differences between spoken and written language, classifies speech into formal and informal varieties, and probes into the nature and difficulties in listening comprehension.
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