yeoman service
It's a Chinese idiom. Pinyin is Xu ě L ǐ s 庸 NGT à n, which means to give material or spiritual help to others when they are in urgent need. The same as "sending charcoal in the snow". It comes from the four character classic A and B.
Analysis of Idioms
Send charcoal in the snow
Idiom usage
To help in time
Examples
It's rare to send charcoal in the snow. The cooperative is more intimate than parents. The first scene of Yong opera two brothers
The origin of Idioms
In the four character classic A and B by Zen master Dexing of Tang Dynasty: "breaking the fan and stopping autumn, sending charcoal in the snow."
yeoman service
there is more what i want to say but cannot - shū bù jìn yán