She's fearless in action and never afraid of difficulty.
Tips
usage
Usually positive — praises boldness with backbone. Often paired with 敢于担当 (dare to take responsibility). Slightly different from reckless: this idiom implies willingness, not impulsiveness.
history
Attested in Qing-dynasty historical fiction 《隋唐演义》 chapter 69. Describes the bold personality of heroes who don't shrink from difficult action.