This question comes into the domain of philosophy.这一问题属于哲学范畴。
The Arctic remains the domain of the polar bear.北极仍是北极熊的领地。
His domain extends for 20 miles in every direction.方圆20英里之内都是他的产业。

［同义词］   authority, estate, scope
［词源］＜法语domain(所有权)