cry for heaven when calamity occurs -- too late
The Chinese idiom, Pinyin is Hu à nzh à h à Ti à n, which means to describe a disaster if you don't make preparations beforehand. From Han Shi waizhuan.
The origin of Idioms
"Han Shi waizhuan" says: "it's not too late to cry for heaven after suffering from it!"
Idiom usage
To be unprepared for something
Examples
If we don't make preparations early, the next flood season will be too late.
Chinese PinYin : huàn zhì hū tiān
cry for heaven when calamity occurs -- too late
use the great banner as a tiger-skin. lā dà qí zuò hǔ pí