她是个伪装高手，表面热情友好，暗地里却在散布谣言。

She was a skilled ___dissembler, appearing warm and friendly while secretly spreading rumors.

那个商人是个善于伪装的人，总是用甜言蜜语掩盖真实意图。

The businessman was a skilled ___dissembler, always hiding his true intentions with sweet words.