鉴毛辨色 (鑒毛辨色) jiàn máo biàn sè

jiàn máo biàn sè set phrase observe facial expression and how it changes
Domain: Idiom 成语 , Subdomain: , Concept:
Notes: Variant of 鉴貌辨色 (Guoyu '鑒毛辨色')