Betray one's ally
In Chinese, the Pinyin is Q ì h ǎ ob è im é ng, which means abandoning friendship and breaking the oath of alliance. From Zuo Zhuan, the 18th year of Xianggong.
The idiom comes from the 18th year of Xianggong in Zuozhuan: "Qi Huan '
Betray one's ally
equally difficult to go on or retreat - jìn tuì shī cuò