造雪球机

snowball tree───n.雪球树

snowball trees───n.雪球树

snowball bushes───雪球灌木丛

snowball effect───滚雪球效应；雪球效应

sail maker───n.修帆工

scale maker───电子秤

snowball bush───雪球灌木丛

snowball fight───打雪仗

snowballed───v.滚雪球式地增长；打雪仗（snowball的过去分词）

It also comes with a built-in snowball maker which means while your foes are busy packing ice together with their hands, you'll already have a stockpile of ammo to unleash.───它里面内置有自动滚雪球机，也就是说当你的对手正用双手把冰雪拍在一块儿时，你已经有一堆储备的“弹药”可以发射了！