a door-hinge is never worm-eaten
The Chinese idiom, Pinyin is h ù sh ū B ù L ó u, which means that things that move frequently are not easy to be eroded. It also means that people can strengthen themselves by regular exercise. It comes from the spring and Autumn Annals of the Lu family.
The origin of Idioms
"Lu's spring and Autumn Annals: the running water is not rotten, the cardinal is not mole, and it moves." In the second volume of Yilin by general manager Ma of Tang Dynasty, it was quoted as "hushubuyu".
Analysis of Idioms
[synonym]: the cardinal is immortal, the cardinal is immortal, and the running water is immortal
Idiom usage
Used as a subject or object; used in figurative sentences
a door-hinge is never worm-eaten
pierce a willow leaf with an arrow from the distance of a hundred paces - bǎi bù chuān yáng