According to the wordcommunication,we can conclude the two key factors of communication,that is the speaker and the hearer. On one hand,this article demonstrates how the ostensive-inferential principle explains the achievement of successful communications,for Sperber and Wilson believe that ostension and inference are the two sides in communication. On the speaker'side,communication is the process of expression meaning ostensively,while on the hearer's side,it is a process of inference. So the article demon...