境内 (jìng nèi): ภายในพรมแดน

Within this country's borders, there are many high mountains and lakes, attracting a large number of tourists every year.

Due to heavy rain, water levels in many rivers within the territory have risen, and the local government is reminding residents to be careful.

This company has set up more than twenty branches within China, covering the whole country.

When traveling within the territory, tourists need to abide by local laws and regulations.