keep secret
It's a Chinese idiom. Pinyin is m ì é RB ù y á n, which means to keep a secret. It's from "Soushenji" by Gan Bao of Jin Dynasty.
The origin of Idioms
The seventh volume of "Soushenji" written by Gan Bao of Jin Dynasty: "Chengyi is worried and afraid, but he doesn't say anything."
Idiom usage
To keep a secret of something.
Chinese PinYin : mì ér bù yán
keep secret
To save the fire and help pay. jiù liáo zhù xīn