Based on theories of conversational implicature, co-operative principles and politeness principles, this paper gives an introduction to two kinds of hedges and makes a pragmatic analysis of them.

• 本文首先介绍了两类模糊限制语，然后试图就模糊限制语的使用分别从会话含义、合作原则及礼貌原则等视角进行语用分析。