结构推理 It is rendering the meaning of a text into another language in the way that the author intended the text. Common sense tells us that this ought to be simple, as one ought to be able to say something as well in one language as in another. On the other hand, you may see it as complicated, artificial and fraudulent, since by using another language you are pretending to be someone you are not. The translation cannot simply reproduce, or be, the original. And since this is so, the first business of the translator is to translate.
   (Peter Newmark)