treacherous
Treachery, Chinese words, Pinyin is B è IX ì NQ ì y ì, meaning breaking a promise, not moral, more refers to friends selling friendship, more used to expose, blame, blame occasion. From "northern history · Zhou Ji Xia · Emperor Wu of Gaozu".
Analysis of Idioms
[synonym] forget what you mean, eat your own words, and break your promise
The origin of Idioms
"Beishi · zhoujixia · emperor Gaozu Wu" said: "back huinu neighbors, abandon faith and forget righteousness.
Idiom usage
It is used in the occasion of exposing, accusing and condemning. The fifth act of Wang Zhaojun by Cao Yu: "it's a sharp knife on my back!
treacherous
gain victory with unstained swords - bīng wú xuè rèn
stamp one 's feet and beat one 's breast - dùn zú zhuī xiōng
conceal the true state of affairs from above and below - mán shàng qī xià