perseverance
n 坚持不懈（persevere坚持）
释义2：
perseverance
/ 7p\:sE5vIErEns /
◙ noun1. [mass noun] steadfastness in doing something despite difficulty or delay in achieving success• 坚持不懈，锲而不舍，毅力 »medicine is a field which requires dedication and perseverance. 医学是一个需要奉献精神和毅力的领域。【语源】
1. Middle English: from Old French, from Latin perseverantia, from perseverant- 'abiding by strictly', from the verb perseverare (see persevere )
俄语/英语字母转换