painlessly 

  1. 副詞
無痛苦地, 無痛地
不痛不癢地

    同義字詞
easily,easy,effortlessly,facilely,fluently,freely,handily,hands down,lightly,readily,smoothly,well

例句

  1. Oh boy, my knife sliced through painlessly !
  2. The only solution maybe to painlessly kill her.
  3. Their brief talk slipped painlessly from her mind.
  4. If they threw that they would be painlessly killed.
  5. Most people die quickly, peacefully, and painlessly .