To bark at those who are not one's master; figuratively, to be fiercely loyal to one's own side or superior and hostile towards outsiders or rivals, often defending one's own group's interests.
在竞争激烈的行业里，有些团队成员往往会“吠非其主”，只维护自己小团体的利益。
In a fiercely competitive industry, some team members often "bark at those who are not their master," only safeguarding the interests of their own small clique.
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