In speech sound production, lower part of the oral cavity are relatively stable and function as a foil to the upper part in its articulatory movements. ()

When a node directly descends from another, without any other nodes intervening, the hierarchical relationship between them is called immediate domination. () 点击查看答案&解析

Cataphoric reference refers to the reference where the presupposed occurs in the text after the word or expression that is presupposing. () 点击查看答案&解析