tué-tsân底層

ground floor

ground floor (Rest of Commonwealth); first floor (US and Canada); bottom (of a pile); lowest rung (of society); substrate; underlying; basic; fundamental

linguistics

English Wiktionary, “底層” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%BA%95%E5%B1%A4 · confidence: Medium (Wiktionary, Hokkien)