tireless

形容词 tireless:

1. showing sustained enthusiastic action with unflagging vitality
   同义词：indefatigable, unflagging, unwearying
2. characterized by hard work and perseverance
   同义词：hardworking, industrious, untiring

1. That from the last ding-dong of doom and clang had faded from the last worthless rock hanging tireless in the last red and dying evening, that even then, there will be one more sound, that of his puny and inexhaustible voice still talking.
   说即使最后一次钟声已经消失，消失的再也没有潮水冲刷的映在落日余晖里的海上最后一块无用礁石之旁时，还会有一个声音，人类微弱的、不断的说话声，这也很容易。
2. We salute you for your tireless efforts for peace.
   我们为您在寻求和平方面做出的不懈努力向您表示敬意。
3. He was above all a good and tireless writer.
   他首先是位优秀的、不知疲倦的作家。