Hidden sword in the sheath
Shaoli Cangdao, a Chinese idiom, Pinyin is Qi à ol à C á n à D à o. It comes from Jianfu stele by Ma Zhiyuan in Yuan Dynasty.
Idiom explanation
There is a sharp knife hidden in the knife room. It's a metaphor for killing the heart.
The origin of Idioms
The second fold of Ma Zhiyuan's Jianfu stele in Yuan Dynasty: "brother! Then your twelve taels of jujube gold are hidden in the sheath. "
Idiom usage
[example]: we are not afraid of direct conflict, we just need to be on guard against our enemies. [usage]: used as object and attribute; used in figurative sentences
Hidden sword in the sheath