可数名词:一般来说,可数名词是表示可以记数的人、事物的名词。主要包括个体名词和集体名词,可数名词一般有单数和复数两种。复数名词是由单数名词通过变化而得来的,其变化有规则和不规则两种。 Countable nouns: In general, countable nouns are nouns that represent people and things that can be counted. Mainly include individual nouns and collective nouns, and countable nouns are generally singular and plural. Plural nouns are derived from singular nouns through changes. There are two types of regular and irregular changes.