一、分类 (Classification)
A:专有名词 (Proper nouns)
B:普通名词 (Common nouns)
Countable nouns (可数名词)
Uncountable nouns (不可数名词)
Individual Nouns (个体名词)
Collective Nouns (集体名词 )
Abstract Nouns (抽象名词 )
Material Nouns (物质名词 )