unrotatingWiktionary 原文1词源 1构词拆分un-前缀(added to adjectives or past participles) not · (added to nouns) lack of+rotating词根/词干词源说明From un- + rotating.释义（英文）形容词 AdjectiveNot rotating.2词源 2释义（英文）动词 Verbpresent participle and gerund of unrotate