tireless

英 ['ta??l?s] 美['ta?rl?s]
  • adj. 不知疲倦的；不疲勞的

英英釋意

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