tireless
英 ['taɪəlɪs]
美['taɪrləs]
- adj. 不知疲倦的；不疲劳的
英英释意
- 1. showing sustained enthusiastic action with unflagging vitality;
- "an indefatigable advocate of equal rights"
- "a tireless worker"
- "unflagging pursuit of excellence"
- 2. characterized by hard work and perseverance