unslippingWiktionary 原文英美unslipping1词源 1构词拆解unun-前缀slippingslipping词干un-(added to adjectives or past participles) not · (added to nouns) lack of词源说明From un- + slipping.释义形容词adjective1That does not slip.unslipping2词源 2释义动词verb1present participle and gerund of unslip