mercilessKK [ˋmɝsələs] /ˈmɝsələs/發音形容詞1殘忍的、無情的、毫不留情的The dictator was merciless toward anyone who questioned him.那名獨裁者對任何質疑他的人都毫不留情。2猛烈的、難熬的指天氣、壓力等We worked all afternoon under the merciless summer sun.我們整個下午都在毒辣的夏日陽光下工作。3嚴厲的、尖刻的指批評、嘲弄Critics were merciless about his latest novel.評論家對他最新的小說批評得毫不留情。