Translation of "Separates" in Chinese

What separates Guangdong from Guangxi?

广东与广西之间隔着什么？

Which ocean separates China and America?

中国与美国隔着哪个大洋？

- Ireland and England are separated by the sea.
- A sea separates Ireland and England.

爱尔兰和英格兰被海分割。