rarefied
🇺🇸
/ˈrerɪfaɪd/
🇬🇧
/ˈreərɪfaɪd/
only understood or enjoyed by a small number of people with special knowledge or interests
The rarefied world of professional ballet is not for everyone.
专业芭蕾舞的世界不是每个人都适合的。
having less oxygen than normal
The rarefied air at the top of the mountain made it hard to breathe.
山顶稀薄的空气使人呼吸困难。