PolyDict.cc
    hailstonehailstone, hail stone /ˈheɪlstəʊn $ -stoʊn/ noun [countable] a small ball of frozen rain冻结的小球形雨粒pequeña bola de lluvia congeladapequena bola de chuva congelada凍った雨の小さな球얼어붙은 작은 빗방울 덩어리