khui-té-khò͘開底褲

open-crotch pants

open-crotch pants (usually for toddlers)

English Wiktionary, “開底褲” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E9%96%8B%E5%BA%95%E8%A4%B2 · confidence: Medium (Wiktionary)