self-murderer

例句:

• He has never exhibited the self-confidence, bordering on arrogance, of his predecessor.
  他从未表现出他前任的那种近乎傲慢的自信。
  来自柯林斯例句
• She has now changed into a happy, self-confident woman.
  如今她已经变成一个快乐、自信的女人。
  
• It ruins people's sense of self-worth, dignity.
  来自BBC
• But now he's returned to his former self.
  来自BBC
• To believe otherwise is to delude one's self.
  来自BBC
• I felt so self-conscious under Luke's mother's intense gaze.
  在卢克母亲审视的目光下，我感到极不自在。