self-appointed

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Some critics deride the group as self-appointed food police.
一些批评人士嘲讽这个组织为“自封的食品警察”。
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As people begin to suspect that a military stalemate may last months, some are worrying that the self-appointed council may entrench itself with no accountability.
正当人们开始怀疑军事僵持会持续数月时，一些人担心自己任命的委员会会巩固自身、不负任何责任。
It encourages clientilism, where self-appointed “community leaders” try to grab as much as possible from the public cake, in theory for their constituents, but in practice often for themselves.
它助长了食客主义。那些自封的“团体领袖”竭力从公共事物中攫取最大利益，名义上是为了其成员，实际上通常是为了他们自己。

The news media and self-appointed ethics "watchdog" groups observe how lobbying is carried out.
Still,Ted Gioia calls Alan Lomax the self-appointed "custodian of America's music traditions."

"It's a smear campaign by these self-appointed consumer advocates and plaintiffs' attorneys, " says Curt D.
FORBES: Souring On Sweeteners
Even the father of theme parks proved no match for the earth's self-appointed guardians.
ECONOMIST: The ski business

behaving as if you have responsibility or authority but without having been chosen by other people

A self-appointed leader or ruler has taken the position of leader or ruler without anyone else asking them or choosing them to have it.