sindexscumboard./skuhm-bawrd, -bohrd/US // ˈskʌmˌbɔrd, -ˌboʊrd //渣滓板,渣滓洞,渣滓岛,渣滓桶Definitionsn.noun · 名词1.›a board or strip of material partly immersed in flowing water to hold back scum. Level 5More words in s →