To be two-faced and treacherous; to speak nicely to one's face but plot against them behind their back; hypocritical and deceitful.
小李不喜欢那种两面三刀的人，觉得他们不值得信任。
Xiao Li dislikes those who are two-faced and deceitful, finding them untrustworthy.
Era:
Ancient
Frequency:
Story:
Ma Junqing's wife, in collusion with Clerk Zhao, falsely accused Ma Junqing's concubine, Zhang Haitang, of murdering her husband and forcibly took Zhang Haitang's son.
Later, Bao Zheng investigated and uncovered the truth, ruling that the son be returned to Haitang.
During the investigation, Ma's wife vehemently defended herself, claiming she would never resort to two-faced tactics and was a virtuous woman.
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