不疲倦的,不厭倦的,不屈不撓的
Tireless \Tire"less\, a. Untiring.
tireless adj 1: showing sustained enthusiastic action with unflagging vitality; "an indefatigable advocate of equal rights"; "a tireless worker"; "unflagging pursuit of excellence" [syn: {indefatigable}, {unflagging}, {unwearying}] 2: characterized by hard work and perseverance [syn: {hardworking}, {industrious}, {untiring}]