a pack of dogs 一群狗

a troop of monkeys 一群猴子

a brood of chicks 一窝小鸡

a plague of locusts 一群蝗虫

a swarm of bees 一群蜜蜂

a gang of elks 一群驼鹿

a school of fish 一群鱼

a pack of wolves 一群狼

a herd of cattle 一群家畜

a flock of birds一群鸟

a gang of thieves 一帮小偷（贬义）

a choir of singers 一个唱诗班

a mob of demonstrators 一群示威者

a troop of soldiers 一队士兵

a crew of sailors 一组船员