[no obj.]continue in a course of action even in the face of difficulty or with little or no indication of success 坚持不懈;锲而不舍 his family persevered with his treatment. 他的家人坚持对他进行治疗。
派生 perseverance noun perseveringly adverb 语源
late Middle English: from Old French perseverer, from Latin perseverare 'abide by strictly', from perseverus 'very strict', from per- 'thoroughly' + severus 'severe'