Abstract:Metaphysics is about knowledge itself，It is something on the main line of the history of philosophy。The difference between metaphysics and the bet365 tennis bet words: a bet365 tennis bet words is the understanding related to what the adding words express。The essence of the difference here is，The study of metaphysics is a priori，The research on Jazi philosophy is empirical。Metaphysical discussion always revolves around sentences，Because knowledge is expressed by language，The sentence is the basic unit of expressing knowledge。There are three aspects related to sentences: the basic sentence pattern at the language level is "SYesP”，The level of meaning is what is expressed by language，The core concept at the semantic level is "truth"。The bet365 tennis bet always revolves around "is" and "truth"，Involving these three levels，Especially the third level，It reveals the truth condition of the sentence，And help illustrate the first two levels。We should understand the nature and characteristics of metaphysics，The bet365 tennis bet should be strengthened，And better advance the study of philosophy through metaphysical research。

　　Keywords:Understand bet365 tennis bet true a priori

　　AuthorWang Lu, Professor, School of bet365 tennis bet, Zhengzhou University (Zhengzhou 450000）。