牝牡骊黄 (牝牡驪黃) pìn mǔ lí huáng

pìn mǔ lí huáng set phrase a black stallion or possibly a yellow mare; don't judge by outward appearance
Domain: Idiom 成语 , Subdomain: , Concept:
Notes: (CC-CEDICT '牝牡驪黃')