项位语法认为,语言研究的视角不应是一种视角代替另一种视角,而是采用多视角的观点,各种语法理论之间并非是相互排斥的取代关系,而是相互补充的共荣关系。由于语言系统的复杂性,一种语法理论很难将语言系统中的各种现象和关系说清楚,因此,语言学中众多语法理论的出现应该被视为正常现象。 The linguistic grammar holds that the perspective of linguistic research should not be one perspective instead of another but a multi-perspective, and the various syntactic theories are not mutually exclusive substitutes, but mutual complementarity relationship. Due to the complexity of the language system, it is very difficult for a grammar theory to clarify various phenomena and relations in the linguistic system. Therefore, the appearance of many grammar theories in linguistics should be regarded as a normal phenomenon.