indefatigable
adjective /ˌɪndɪˈfætɪɡəbl/
/ˌɪndɪˈfætɪɡəbl/
(formal, approving)- never giving up or getting tired of doing something
不屈不挠的;不知疲倦的 - an indefatigable defender of human rights
不屈不挠的人权捍卫者 - She was indefatigable in her search for the truth.
她孜孜不倦地寻找真理。
词源early 17th cent.: from French, or from Latin indefatigabilis, from in- ‘not’ + de- ‘away, completely’ + fatigare ‘wear out’. - an indefatigable defender of human rights