pōaⁿ-kha-chio̍h絆跤石

stumbling block

stumbling block; obstacle

figuratively

English Wiktionary, “絆跤石” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E7%B5%86%E8%B7%A4%E7%9F%B3 · confidence: Medium (Wiktionary)