缩写词是英语语言特有的一种书写形式。在英文阅读和写作中，我们经常会碰到它，但对于它的习惯用法我们却知之不多。在写作时，不少学生爱用缩写词sth．和sb．代替something和some－body，或用usn．和e．g．代替usually和forexmple，诸如此类不规范的用词数不胜数。虽然一般词 Abbreviations are a form of writing that is unique to English language. We often encounter it in English reading and writing, but we do not know much about its usage. Many students love to use the acronym sth when writing. And sb. Instead of something and some-body, or use usn. And e. g. Instead of usually and forexmple, there are countless words that are not standardized. Although the general word