ivory tower
noun [ C ] disapproving uk/ˌaɪ.vər.i ˈtaʊər/ us/ˌaɪ.vɚ.i ˈtaʊ.ɚ/
象牙塔
To live or be in an ivory tower is not to know about or to want to avoid the ordinary and unpleasant things that happen in people's lives.
Academics sitting in ivory towers have no understanding of what is important for ordinary people. 坐在象牙塔里的学究们并不了解普通人的需求。