1. 两面派：double-dealer 口是心非之人 | double-dealing 两面派 | double-deck 双层

1. 口是心非;两面派行为
Double-dealing is behaviour which is deliberately deceitful.

e.g. Marriages were broken and lives ruined by the revelation of double-dealing.
骗局被揭穿后，婚姻破裂了，生活也毁了。