fail when success is already in sight
The Chinese idiom, Pinyin is sh ì B à ichu í ch é ng, which means that things fail when they are about to succeed. It comes from the story of Huansha, begging for surrender.
The origin of Idioms
Liang Chenyu's Huansha Ji Qijiang in Ming Dynasty: "jiuren is a mountain, and his success falls short. He expects to gather without effort, and everything is on the verge of success."
Idiom usage
We can't see things like that again.
fail when success is already in sight
when you go out to buy , don 't show your silver - cái bù lù bái
while water can carry a boat , it can also overturn it - zài zhōu fù zhōu
An evil son and a lonely minister - niè zǐ gū chén