upsurge
noun [ C ] uk/ˈʌp.sɜːdʒ/ us/ˈʌp.sɝːdʒ/
急剧上升，猛增
a sudden and usually large increase in something
An upsurge of/in violence in the district has been linked to increased unemployment. 该地区暴力事件的猛增与失业率上升有关。
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