gregarious /ɡrɪˈɡeriəs/ adjective
fond of company; sociable
喜爱群居的；热爱交际的；合群的
(of animals) living in groups or flocks
（动物）群居的；聚生的
warm and outgoing in social situations
待人热情的；外向开朗的
词根greg-（群、聚集、扎堆）+ -ent（形容词后缀）
喜欢聚集成群的 → 合群的、爱社交的、群居的
联想：人喜欢扎堆社交 = gregarious合群；动物成群生活 = gregarious群居，统一核心：爱成群、喜相伴
纽约时报原文
His gregarious personality makes him popular among colleagues and friends in every social circle.
译文：他开朗合群的性格，让他在各类社交圈子里都深受同事和朋友的欢迎。
外刊高频搭配
gregarious personality 合群开朗的性格
gregarious people 善于交际的人
gregarious animals 群居动物
gregarious birds 群居鸟类
naturally gregarious 天生合群、天生爱社交的
例句
Unlike her introverted sister, she is gregarious and always eager to join group activities.
和内向的姐姐不同，她性格合群外向，总是热衷于参加集体活动。
Most wild herbivores are gregarious and rely on groups to avoid natural enemies.
大多数野生食草动物都是群居的，依靠群体躲避天敌。