nappy
/ˈnæpɪ; `næpɪ/ n
(Brit infml 口) (also fml 文作 napkin) (US diaper) piece of towelling cloth or similar soft padding folded round a baby's bottom and between its legs to absorb or hold its urine and excreta 尿布
a disposable nappy, ie one that is made to be thrown away after being used once 一次性尿布（用後即弃的）.