hundreds and thousands       
noun [ plural ] UK uk/ˌhʌn.drədz ənd ˈθaʊ.zəndz/ us/ˌhʌn.drədz ənd ˈθaʊ.zəndz/ (US nonpareils)
 (装饰糕点等用的)着色珠子糖
small hard pieces of coloured sugar used to decorate cakes, biscuits , sweets, etc.
 Synonym: sprinkles