idiom
a snowball effect
一种情况,其中某事物的规模或重要性以越来越快的速度增加
Meaning
a situation in which something increases in size or importance at a faster and faster rate
Example
The more followers she got, the more famous she became, creating **a snowball effect**.
她的追随者越多,她就越有名,形成了一个雪球效应。