indefatigable
indefatigable[ˌɪndɪˈfatɪgəb(ə)l]adjective- (of a person or their efforts) persisting tirelessly
(人,努力)坚持不懈的,不屈不挠的
an indefatigable defender of human rights.
不屈不挠的人权捍卫者。
派生indefatigabilitynounindefatigablyadverb语源- early 17th cent.: from French, or from Latin indefatigabilis, from in- 'not' + de- 'away, completely' + fatigare 'wear out'
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