If there is an upsurge in something, there is a sudden, large increase in it.
例句
...the upsurge in oil prices...油价的暴涨Saudi bankers say there's been an upsurge of business confidence since the end of the war.沙特的银行家说战后工商业界信心猛增。
英汉词典释义
n.
急剧增长;上升
an upsurge in violent crime暴力犯罪猛增an upsurge of interest in science and technology对科学技术的兴趣倍增the recent upsurge in the popularity of folk music近来民间音乐的大受欢迎There has been a recent upsurge of violence in the area.近日应该应该该地区暴力事件急增。
英英词典释义
Noun
1. a sudden forceful flow
2. a sudden or abrupt strong increase;
"stimulated a surge of speculation""an upsurge of emotion""an upsurge in violent crime"