a snowball effect
US /ə ˈsnoʊ.bɔːl ɪˈfekt/
UK /ə ˈsnoʊ.bɔːl ɪˈfekt/
1.
滚雪球效应
a situation in which something increases in size or importance at a faster and faster rate
:
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The scandal had a snowball effect, growing larger with each new revelation.
这个丑闻产生了滚雪球效应，随着每一次新的揭露而变得更大。
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The small protest quickly gained momentum, creating a snowball effect that led to a nationwide movement.
小规模的抗议活动迅速获得动力，产生了滚雪球效应，最终演变成一场全国性的运动。