n.雪球；打雪仗；滾雪球式的募捐法
v.向 ... 丟雪球；使生長(zhǎng)或快速的增長(zhǎng)
He was hit by a volley of snowballs. 他被一陣投來(lái)的雪球擊中了。
We like having snowball fights in winter. 我們喜歡在冬天里打雪仗。
用作動(dòng)詞 (v.)The children snowballed each other. 孩子們互相擲雪球。
Orders for the new product have begun to snowball because of our new ad campaign. 由于我們的新的廣告促銷活動(dòng)，新產(chǎn)品的訂貨單開(kāi)始像滾雪球一樣迅速增多。
