dauntless
adj. 无畏的；勇敢的；不屈不挠的
例句
Among these prisoners was an old lawyer--a man with a strong face and a dauntless mien.
在这些囚犯中有一个老律师——一个有坚强的神色和一副无所畏惧的态度的人。
The goal has now been finally attained through their dauntless and persistent efforts.
经过他们百折不挠，再接再励的努力，现在终于达到了目的。
《新英汉大辞典》
Even though there are myriad hardships and hazards, they can't stop the dauntless explorers.
纵有千难万险，也挡不住英勇的探险队员。
