sharp upsurge
sudden upsurge
an upsurge in separatist activity.
an upsurge in violent crime.
the recent upsurge in the popularity of folk music
an upsurge of interest in science and technology
There has been a recent upsurge of violence in the area.
security forces are on the alert for an upsurge in violence.
he views the right-wing upsurge in Europe with alarm .
And now, nearly every big city is upraising the upsurge to establishes digitlization city.
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