pertinacity

名词 pertinacity:

1. persistent determination
   同义词：doggedness, perseverance, persistence, persistency, tenacity, tenaciousness

per.ti.nac.i.ty

n.（名词）
The quality or state of being pertinacious.See Synonyms at perseverance
坚持到底，执拗，顽固：坚持不变的特性或状态参见 perseverance