up·surge /ˈʌpˌsɚ/
(vi.)起浪,湧起湧起,高潮
upsurge
n 1: a sudden forceful flow [syn: rush, spate, surge]
2: a sudden or abrupt strong increase; "stimulated a surge of
speculation"; "an upsurge of emotion"; "an upsurge in
violent crime" [syn: surge]