Nouns in English are different from those in Chinese, and noun deformation in English can represent the plural form of words. In Chinese, if you want to express the plural form, you need to change the previous number. In English, the singular and plural of some nouns do not necessarily mean the same thing. For example, attention:attention is not the plural of attention, but it can be changed to attention if it means caring and considerate.

Some nouns will never change, and the singular and plural forms are the same. For example, the singular and plural forms of China people are all Chinese; ; The singular and plural forms of Japanese are Japanese; The singular and plural form of sheep is sheep; The singular and plural forms of deer are deer; Both singular and plural forms of fish are fish. There is a funny and memorable saying: China people and Japanese people ride sheep and deer to eat fish.