adj.坚定不移的，坚决的，义无反顾的

The lawyer was pertinacious in pursuing the case, refusing to give up until justice was served.
律师在追诉案件中非常坚持，直到公正得到伸张才肯罢休。
She was pertinacious in her study habits, spending countless hours in the library to achieve her academic goals.
她在学习上坚持不懈，投入大量时间在图书馆以实现学业目标。
Despite numerous setbacks, the entrepreneur remained pertinacious, determined to turn his failing business around.
尽管遭遇多次挫折，这位企业家仍坚持不懈，决心扭转公司的颓势。
The scientist's pertinacious pursuit of knowledge led to groundbreaking discoveries in the field of physics.
科学家对知识的执着追求导致了物理学领域的重大发现。
The athlete's pertinacious approach to training helped him overcome injuries and return to top form.
运动员坚持不懈的训练方法帮助他克服伤病，重返巅峰状态。
His pertinacious determination to improve his public speaking skills eventually paid off, as he became a renowned orator.
他不断提升公开演讲技巧的决心最终得到了回报，他成为了著名的演说家。
The teacher was pertinacious in helping her struggling students, staying after school to provide extra tutoring whenever needed.
老师对学生们的困难坚持不懈地提供帮助，课后常常留下来进行额外辅导。
The researcher's pertinacious research on climate change led to a comprehensive report that influenced government policies.
研究员对气候变化的坚持不懈的研究最终导致了一份影响政府政策的详尽报告。
In the face of opposition, the activist remained pertinacious in advocating for social justice and equality.
面对反对，活动家依然坚持不懈地为社会正义和平等发声。
Her pertinacious commitment to her dreams allowed her to overcome numerous obstacles and finally achieve her dream career.
她对梦想的执着坚持使她能够克服重重困难，最终实现了自己的职业理想。