Yan Shi: Biography of Assassins in Historical Records: Jing Ke is not only Yan, but also Gao Jianli, a dog who loves Yan and is good at attacking and building. Jing Ke is a heavy drinker, drinking with Dog Tu and Gao Jianli in Yan City every day. In the past, when the wine was drunk and the ears were hot, Jing Ke sang the city and wept together. Later, Yan's Tragedy expressed the feelings of friendship and parting between friends.
Chu Prisoner: Zhong Yi, a native of Chu State, was captured to the State of Jin in the Spring and Autumn Period. Later, it refers to people who are imprisoned, and also refers to people who are in a difficult situation and have nothing to do.