ta̍h-ōe-thâu踏話頭

to make it clear beforehand

to make it clear beforehand; to forewarn; to hint what one will do in one's speech; preface; foreword; introductory remarks; preamble; prelude

English Wiktionary, “踏話頭” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E8%B8%8F%E8%A9%B1%E9%A0%AD · confidence: Medium (Wiktionary)