The singular and plural are a kind of grammarcategory in the language with the number category.
单、复数在有“数”范畴的语言中是一种语法范畴。
2
However, in practice, may variant usages about "we" are used. Often going beyond the grammarcategory the plural forms of the first personal pronoun, "we" has some special rhetoric meanings.
然而在实际应用中，它又存在着许多变异用法，常常超越第一人称复数这一语法范畴，具有特定的修辞意义。
3
Category for secondary process, ways of thinking, strictly follow the grammar and the formal logic, follow the space-time norms, alleviate their instincts impulse.