tireless 

  1. 形容詞
不疲倦的, 不厭倦的
不屈不撓的, 不懈的
韌的, 持久的

    同義字詞
indefatigable,inexhaustible,unflagging,untiring,weariless

例句

  1. He was tireless at work.
  2. The kid is relentless, tireless .
  3. She is experienced and is a tireless worker.
  4. The yards were centres of tireless industry.
  5. Who is tireless in her devotion to this club?