Also, be careful of regional idioms.

还有，小心地域性的习语。

That was my question was how regional are these ingredients?

我的问题是材的地域性有多强？

And those are so phenomenally regional.

都有非常明显的地域性。

Research can be territorial — new communities emerge sometimes because of disagreements in fields.

究可以是地域性的——有时由于领域内的分歧会出现新的社区。

Regional differences exist between countries, and some issues are local rather than global, not necessarily requiring global cooperation.

不同的国家存在地区差异，有问题是地域性的而非全球性的，不一定需要全球合作。

But be careful when you use idioms because if you're using an idiom, that's extremely regional and specific to a certain location.

讲习语时要留意，因为如果你讲习语，是非常地域性的，而且特定于某个地点。