flock

People have been flocking to the exhibition..看展览的人络绎不绝。

a flock of,一群（鸟，羊等）

flocks and herds,牛羊

a flock of sheep,一群羊

真题例句...The high fertility made a growing number of people flock to cities where there were lively entertainment quarters...第一套CET62017.6文本题

真题例句...They do not all know what they are seeking but they flock there...第一套CET62015.6阅读理解