In the sentence 'London is a big city.', 'London' is a proper noun. (在句子‘伦敦是一个大城市。’中，‘伦敦’是一个专有名词)
We should capitalize proper nouns, such as 'China'. (我们应该将专有名词大写，比如‘中国’)
Names of people are proper nouns, like 'John'. (人名是专有名词，例如‘约翰’)
The name of the book 'Harry Potter' is a proper noun. (《哈利·波特》这本书的名字是一个专有名词)
In English, proper nouns are used to refer to specific things. (在英语中，专有名词用于指代特定的事物)
The brand name 'Apple' is a proper noun. (品牌名‘苹果’是一个专有名词)
Proper nouns often do not need an article. For example, 'France' is a proper noun. (专有名词通常不需要冠词。例如，‘法国’是一个专有名词)
In the sentence 'Mount Everest is very high.', 'Mount Everest' is a proper noun. (在句子‘珠穆朗玛峰非常高。’中，‘珠穆朗玛峰’是一个专有名词)
The name of the river 'Nile' is a proper noun. (河流名‘尼罗河’是一个专有名词)
We can't use a proper noun as a common noun. For example, 'I went to a Paris.' is wrong. 'Paris' is a proper noun. (我们不能将专有名词用作普通名词。例如，‘我去了一个巴黎。’是错误的。‘巴黎’是一个专有名词)
