n a moving crowdn a group of many things in the air or on the groundv be teeming, be abuzzv move in large numbers
n. 蜂群, 一大群( swarm的名词复数 )v. 密集( swarm的第三人称单数 ); 云集; 成群地移动; 蜜蜂或其他飞行昆虫成群地飞来飞去