In English, it is very important to distinguish countable nouns from uncountable nouns.

It is not very accurate to distinguish countable nouns from uncountable nouns simply by relying on common sense (that is, counting methods). Due to language differences, English and Chinese are not completely consistent in the concept of countability of nouns. For example, duty in English is countable, but it is often uncountable in Chinese. On the contrary, "soap" in Chinese is countable, while soap in English is uncountable. In addition, there are many generally uncountable nouns that can also be used as countable nouns in a certain context. Most of them are material nouns, that is, substances that cannot exist in individual form alone, such as:

( 1)Do you want tea or coffee? Would you like tea or coffee? (uncountable)

Please give me two cups of coffee. (countable, equal to two cups of coffee)

Also, abstract nouns are generally uncountable, but many of them are countable in English, such as hope and experience.

When in doubt about the countability of nouns, the most reliable way is to consult Ying Ying or English-Chinese dictionaries marked with [C] (countable) and [U] (uncountable).