•a flock of sheep/goats/geese一群绵羊／山羊／鹅

•The shepherd is bringing his flock down from the hills.牧羊人正把他的羊群往山下赶。

•A noisy flock of tourists came into the building.一群吵吵嚷嚷的游客走进了大楼。

•The vicar invited all the members of his flock (= all the people who go to his church) to attend the special service.牧师邀请教区的所有信徒参加这一特别仪式。

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•Hundreds of people flocked to the football match.数百人蜂拥前来观看足球比赛。

•[+ to infinitive] Crowds of people flocked to see the Picasso exhibition.大群人蜂涌去看毕加索画展。