infidelity [ˌɪnfɪˈdɛlɪti]

例句:

• The implication that marital infidelity enhances a leader's credibility is preposterous.
  婚姻不忠会提升领导人可信度的暗示荒谬之极。
  
• She does not think infidelity is a gender issue.
  来自THETIMES
• Is infidelity ever forgivable?
  不贞的行为可以宽恕吗？
  
• I divorced him for infidelity.
  我因他的不忠而与他离婚。
  
• She argues for a less black-and-white condemnation of infidelity.
  来自THETIMES
• One is what might be called infidelity overload.
  来自WSJ