snowball
noun [ C ] uk/ˈsnəʊ.bɔːl/ us/ˈsnoʊ.bɑːl/
雪球
a ball of snow pressed together in the hands, especially for throwing
Idioms
not have a snowball's chance in hellidiom informal 希望渺茫，毫无可能
to have no chance of succeeding
If he can't afford a good lawyer, he doesn't have a snowball's chance in hell of winning the case. 如果请不起好律师，他就不可能打赢这场官司。
a snowball effectidiom 雪球效应
a situation in which something increases in size or importance at a faster and faster rate
The more successful you become, the more publicity you get and that publicity generates sales. It's a kind of snowball effect. 你越成功，你的媒体曝光度也高，这种曝光度可产生销售额。这是一种雪球效应。
snowball
verb [ I ] uk/ˈsnəʊ.bɔːl/ us/ˈsnoʊ.bɑːl/
滚雪球般迅速增大；（程度、规模）不断扩大
If a plan, problem, idea, etc. snowballs, it quickly grows bigger and more important.
I suggested a few drinks after work, and the whole thing snowballed into a company party. 我提议下班后喝几杯，结果最后发展成了一场公司聚会。