- 岩居穴处 yánjūxuéchǔ to live in cavesto live in mountain caves; to live in seclusion or as a hermit
- 巢居穴处 cháojūxuéchǔ primitive livingto live in trees and caves; to live in a primitive or prehistoric manner
- 群居穴处 qúnjūxuéchǔ to live in groups and dwell in caves(idiom) describes the primitive life of early humans living together in mountain caves
