snowball

n.

雪球；[植]荚蒾属；

vi.

打雪仗；滚雪球般增大；

vt.

向…掷雪球；使滚雪球般增大；

复数：snowballs过去式：snowballed过去分词：snowballed现在分词：snowballing第三人称单数：snowballs

1. He was hit by a volley of snowballs.
   他被一阵投来的雪球击中了。
2. We like having snowball fights in winter.
   我们喜欢在冬天里打雪仗。

1. The children snowballed each other.
   孩子们互相掷雪球。
2. Orders for the new product have begun to snowball because of our new ad campaign.
   由于我们的新的广告促销活动，新产品的订货单开始像滚雪球一样迅速增多。

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