Yao Nai Attached great importance to the active effect of imitation, which involves “imitating" and “non-imitating".

The paper is meant, by comparing the generating pattern of onomatopoeias of "perception imitation generation" both in Chinese and English, to advocate that the generation of onomatopoeia is governed by the phonetic and phonological systems of that language.

Research on descriptions began from the dabate about whether proper names have connotation or denotation.

, analyzed and explained this problem, and their views are not the same: Frege did not make the distinction between proper names and descriptions, and thought that difference in other aspects between proper names and descriptions can be tolerated as long as their references are the same; yet Russell strictly distinguished proper names from descriptions; and Kripke r.

Reference assignment of descriptions plays a key role in understanding utterances in communication.

"Current French King": "a Description "or" a Proper Name"?——the understanding to Russell s division of " the description " and " the proper name ";

Apotheosis of logic and philosophy——the study of the theory of description;

As an important manner in criminal investigation and solving the cases,imitative portrait becomes more and more important and it already has been an effective measure of striking criminals.