rolling stoneWiktionary 原文词源说明From the proverb a rolling stone gathers no moss.释义（英文）名词 Noun(idiomatic) A person who moves around a lot and never settles down; a vagrant.(slang) A womanizer.(geology) A geological phenomenon where rocks move and inscribe long tracks along a smooth valley floor without animal or human intervention.(astronomy) A meteoroid.词族相关词（1）a rolling stone gathers no moss