The fans rushed forward in a swarm to celebrate the victory.
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From 《红楼梦》 ch. 9 (Qing): amid a schoolroom brawl, 墨雨 grabbed a door-bolt, 扫红 and 锄药 took whips, and 蜂拥而上 - 'swarmed up like bees.' One of the most famous fight scenes in the novel.
grammar
Apostrophe: fēngyōng'érshàng - syllable break before the vowel-initial 而 (ér).