his eyes are bigger than his belly
Chinese idiom, Pinyin is y ǎ NCH á nd ù B ǎ o, which means that people are insatiable. From a dream of Red Mansions.
The origin of Idioms
Chapter 16 of a dream of Red Mansions by Cao Xueqin in Qing Dynasty: "it's time to see the world after a trip to Suzhou. I'm still so hungry."
Analysis of Idioms
Insatiable greed
Idiom usage
To be insatiable is to be insatiable
his eyes are bigger than his belly
in the most congenial surroundings - jiāo lóng dé shuǐ
Take advantage of the opportunity - guà xí wéi mén