抱团指的是在dota游戏里，5v5竞技，一方有3~5个英雄一起行动，不给敌方任何各个击破的机会。
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该地居民紧密抱团，狭隘排外。
在一位警员受到调查时，警察抱团的事并不罕见。
It's not unusual for the police to close ranks when one of their officers is being investigated.
图书馆学文献经常让人感到厌恶是因为图书馆们天生是抱团的。
The reason why library literature is often horrible is that librarians are collaborative beings by nature.
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