什么是翻译 ？实际做翻译的人一般不会问这个问题，因为在他们的心目中，似乎那不是不言自明的事吗？写教程的人或做理论研究的人，往往都试图给出一个完美的定义。然而，至今似乎还没有谁真正做到。笔者不比别的作者聪明，所以不想再多给一个多余的定义。不过我觉得，了解一下美国语言学家罗曼.雅各布森（romanjakobson,1896-1982）在《论翻译的语言学问题》中对翻译的分类还是会有些好处的。他将翻译分成三大类
1. 语内翻译，或重新措辞，即用同一种语言中的某些符号来解释另一些符号。
2. 语际翻译，或平时说的侠义翻译，即用某种语言符号来解释另一种语言符号。
3. 符际翻译，或跨类翻译，即用非语言符号系统的符号来解释语言符号。
4. What is translation?A real translator will not ask this question ,because they think that is without explanation .someone who writes textbook or study theory always try to give a perfect definition .however ,it seems that no one has actually done that for now .I am not smarter than other writers ,so I do not want to give a extra definition .But I think it is good to know the category of translation in a book called The Linguistic Aspects of Translation written by American linguist Roman Jakobson .He divide translation into 3 categories :
1.Intralingual translation or paraphrase ,that is
