Show off one's skill
Chinese idiom, Pinyin is ch à NGG à ngxu à nqi à o, which means to show off craftsmanship. From Zhubi Fangwen.
The idiom comes from "Zhubi Fangwen" written by Liu Zongyuan in Tang Dynasty: "although you are barefooted, you only have your toes. Show off your skill and don't save your life."
Show off one's skill
Chicken and insect win and lose - jī chóng dé sàng
study from others on halfway , lost sb . 's own strongness - shòu líng shī bù
fierce struggle between two evenly-matched opponents - hǔ dòu lóng zhēng