chi̍t-si-chi̍t-sut一絲一屑

a tiny bit

a tiny bit; an iota; a trace

English Wiktionary, “一絲一屑” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E4%B8%80%E7%B5%B2%E4%B8%80%E5%B1%91 · confidence: Medium (Wiktionary)