一个似乎非常简单and却存在大量可待研究的话语含义。在句法结构邻接之外,合取and还存在语义结构应接。这种连接一方面依靠毗连,另一方面依靠通连。由此,它赋予合取and在话语逻辑中的语义对称性、传递性和添加性。合取and的这些性质要求我们更加注意合取对象之间以及合取对象与话语命题之间的逻辑关系,因为这样我们就可能更加贴切地理解他人和我们自己的话语。 One seems very simple, but there is a lot of discourse that can be studied. In addition to the adjacency of the syntactic structure, the semantic structure should exist. This connection depends on the one hand on the one hand, on the other hand relies on connections. As a result, it gives semantic symmetry, transitivity and additivity in the logic of discourse. These properties of conjunctions require us to pay more attention to the logical relationship between conjunctive objects and conjunctive objects and discourse propositions, because then we may be more apt to understand others and our own discourse.