The notion of sentence appeared as early as the Shang Dynasty(商代) and evolved from Yanju(言句) to Yiju(意句) and then to Yunju(韵句). The development of the notion is an interaction of biological, psychological and cultural factors. And its process has proved some laws of the development of thought and intra - linguistic relations : from fuzziness to explicity, from perception to rationality, from oral language to written la...