duplicity /djuːˈplɪsɪtɪ/ TEM8

• 1. 

  N-UNCOUNT If you accuse someone of duplicity, you mean that they are deceitful. 奸诈 [正式]

  例：

  Malcolm believed he was guilty of duplicity in his private dealings.

  马尔科姆相信他在为其私底下行为的奸诈内疚着。