난징

In a sentence

• 난징은 중국의 역사적인 도시입니다.

  Nanjing is a historic city in China.

  Here, '난징' is used as a proper noun to refer to the geographical city of Nanjing, indicating a location.

• 내 친구는 지난 여름에 난징에 갔다.

  My friend went to Nanjing last summer.

  In this sentence, '난징' again refers to the city in the capacity of a travel destination.

• '난징의 눈물'이라는 책이 유명해졌어요.

  The book 'The Tears of Nanjing' has become famous.

  Here, '난징' is part of a title, referring metaphorically to historical events associated with the city, thus used in a literary or cultural sense.