Definition: an area of knowledge or experience Level: C2
通过这个项目，我们将进入未知的领域。
With this project, we'll be moving into unknown ___territory.
探索新的、未知的领域一开始可能有些令人害怕。
Exploring new, unknown ___territory can be somewhat frightening at first.
她的专长在于认知心理学领域。
Her expertise lies in the ___territory of cognitive psychology.
