upsurge in crime
collocation犯罪激增
The city has seen an upsurge in crime over the past year.
过去一年该市犯罪激增。
激增；骤增；急剧上升
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激增；骤增；急剧上升
a sudden strong rise or increase
The city has seen an upsurge in cycling since the new bike lanes were built.
自从新自行车道建成以来，这座城市骑自行车的人数激增。
突然的强烈上升或流动
A sudden strong rise or flow.
There was a sudden upsurge of interest in local history after the museum exhibition opened.
博物馆展览开幕后，人们对当地历史的兴趣突然高涨。
Doctors are worried about the recent upsurge in flu cases during winter.
医生们对冬季流感病例最近的猛增感到担忧。
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犯罪激增
The city has seen an upsurge in crime over the past year.
过去一年该市犯罪激增。
需求激增
There has been an upsurge in demand for electric vehicles.
对电动汽车的需求激增。
暴力事件激增
The upsurge of violence has alarmed residents.
暴力事件的激增令居民感到震惊。
突然激增
The sudden upsurge in prices took everyone by surprise.
物价的突然激增让所有人措手不及。
经济高涨
The country enjoyed an economic upsurge after the reforms.
改革之后，该国经济高涨。
兴趣激增
There has been an upsurge of interest in traditional music.
人们对传统音乐的兴趣激增。
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up（向上）+ surge（涌）→ 激增如浪潮猛涨。
语域：formal 常见场景：新闻报道、学术写作、正式报告 该词多用于正式语体，常见于新闻报道或书面报告，表示数量或程度的突然上升；日常口语中较少使用。
upsurge 的重音在第一个音节 /ˈʌp/，因此严格来说没有常用词与它完全押韵。surge 和 urge 拼写相似并含有相同的词尾，但它们的重音在 /ɜːdʒ/ 上（分别读作 /sɜːdʒ/ 和 /ɜːdʒ/），与 upsurge 的重音位置不同，所以只是形近而非同韵。merge、verge、purge、converge 等也都以 /ɜːdʒ/ 结尾，但同样不构成对 upsurge 的押韵。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.