短語詞組短語indefatigability detail 不易疲勞relative indefatigability 相對不疲勞性;相對不易疲勞性fortitude indefatigability perseverance persevere 不屈不撓fortitude indefatigability pe 不屈不撓fortitude indefatigability perseerance perseere tenacity 不屈不撓fortitude indefatigability perseverance persevere tenacity 不屈不撓 返回 indefatigability