Which ones are correct? Thank you.
In ancient times, there were many enemies at the north of China.
In ancient times, there were many enemies in the north of China.
In acient times, there were many enemies north of China
收錄日期: 2021-05-03 05:43:37
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20180302080443AAfGYcb