TN

例句：

1. 1. The ancient TN is a fascinating story of human history.
   古代的TN是一个引人入胜的人类历史故事。
2. 2. She spent her childhood in the TN of the 1960s.
   她童年时生活在20世纪60年代的年代。
3. 3. The TN of the 21st century will be marked by technological advancements.
   21世纪的年代将由技术进步所标记。