adj.不屈不挠的，不知疲倦的

Despite working long hours, she remained indefatigable in her pursuit of excellence.
尽管工作时间长，她在追求卓越方面依然不屈不挠。
The marathon runner's indefatigable spirit pushed him through the last grueling miles.
马拉松运动员那不可征服的精神驱使他完成了最后几英里艰难的路程。
Her indefatigable dedication to the cause inspired everyone around her.
她对这一事业不懈的奉献精神激励了周围的所有人。
The researcher's indefatigable efforts led to a groundbreaking discovery in the field.
研究者不懈的努力导致了该领域的一项重大发现。
The social worker's indefatigable commitment to helping the homeless earned her great respect.
这位社会工作者帮助无家可归者的不懈努力赢得了人们的极大尊敬。
His indefatigable enthusiasm for learning new languages made him fluent in six within a decade.
他对学习新语言那种不知疲倦的热情使他在十年内精通了六种语言。
The athlete's indefatigable training regimen prepared him for the toughest competitions.
运动员那永不疲倦的训练计划让他为最艰难的比赛做好了准备。
The teacher's indefatigable patience with struggling students was a testament to her passion for education.
老师对学习有困难的学生表现出的无比耐心证明了她对教育的热爱。
The environmental activist's indefatigable lobbying efforts finally resulted in stricter pollution control laws.
环保活动家不懈的游说努力最终导致了更严格的污染控制法律的出台。
Despite setbacks, the entrepreneur's indefatigable optimism kept him moving forward with his startup.
尽管遭遇挫折，这位企业家不知疲倦的乐观精神仍促使他继续推进自己的初创企业。