white-collar class
English Wiktionary, “鞋襪帶跤” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E9%9E%8B%E8%A5%AA%E5%B8%B6%E8%B7%A4 · confidence: High (Wiktionary, PH/Quanzhou/Jinjiang)