penitential [ˌpɛnɪˈtɛnʃəl]

例句:

• I spent a penitential weekend augmenting the green acceptable.
  我临时唯有利用周末在每顶绿帽子上加一点红色上去,以免男性来宾不肯戴上.
  
• The word also had a penitential meaning.
  这个字也有悔罪的意思.
  
• My penitential stripes, my streaming blood, Have purchas'd Heaven
  来自W. Cowper
• The priest greets the congregation then the Penitential rite and opening prayers are said.
  来自BBC
• Purgatory was a kind of penitential transit camp on the way to the gates of Heaven.
  来自D. Lodge