As China is a country with a vast territory, there are differences in different areas in ways of making jiaozi or even serving it.

中国幅员辽阔，因此在不同地区做饺子的方式、甚至端上饺子的方式都有差异。

youdao

As a country boasting a vast territory and encompassing a large population, people in many places of China speak their own dialects.

中国幅员辽阔，人口众多，很多地方人们都说自己的方言。

youdao

China has a vast territory and a large population.

中国地域辽阔，人口众多。

《新英汉大辞典》

The rebels began their guerilla campaign for a separate Tamil homeland in 1983, and at the height of their power they controlled vast swathes of territory.

VOA: standard.2009.04.06

This change opened up a vast territory for these dinosaurs to roam.

MSN: Dinosaur boom linked to rise of Rocky Mountains

The maps are in urgent need of updating and the chronology is confusing - perhaps the result of attempting too much over a vast territory.

CNN: Two women on an intriguing stroll through Asia

Northern Quebec, a vast territory twice the size of France, will be the focus of the legislation on a conservation and sustainable front as well as preserving and respecting aboriginal communities and culture in the area.

FORBES: Groundbreaking Legislation in Northern Quebec Expected