作为一种语言现象，指称词语的变异也得到了语言研究者的关注。
As a linguistic phenomenon, the variation of referring expressions has always attracted attention of many scholars.
重叠变异、词语误用、矛盾语义是语用层面的变异现象。
Overlap misuse and contradictory meanings are the variation phenomena in pragmatics.
本文主要讨论在具体的言语修辞活动中，单个词语的意义由于受到语境（语言语境）的干扰，会临时产生种种变异：或通过语义类比产生语义的叠加与互补；
In each act of speaking, the specific meaning of a word may vary with the linguistic context. For example, the semantic analogy leads to the reduplication and mutual complement of meaning;
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