Therefore, fuzzy information at utterance level is characterized by fluidity and negotiability.

因而，话语层面上的灰色信息具有流动性和协商性的语用特征。

Verschueren (1999) points out that language has three properties: variability, negotiability and adaptability.

指出语言具有三种特性：可变性、协商性和顺应性。

Chapter four puts forward, from the aspect of negotiability, the principles and strategies for choosing the source domain.

第四章从协商性的角度，提出了源域选择所需遵循的原则和策略。

This thesis deals with the usage of three key notions of pragmatics in cloze, respectively variability, negotiability and adaptability.

本论文研究了语用学中三个关键概念：多样性，协商性和适应性在完型填空中的作用。