The claim for returning unjustified enrichment has been an important right in civil law.

不当得利请求权是民法上一项重要的权利。

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Unjustified benefits is one of important civil law content. But, unjustified benefits returns to the core claim of the unjustified benefits then.

不当得利是民法的重要内容之一，而不当得利返还请求权则是不当得利的核心。

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The practical one is that such coercion implies an unjustified claim of knowledge, even certainty.

ECONOMIST: Liberty, equality, humility

If you try to set up a system where people are taxed within the games, there is more chance people will game the system (so to speak) and claim unjustified losses, warns one of the authors, William Dilla, an accounting professor at Iowa State University.

FORBES: Taxing Virtual Worlds

Citibank said the claim was "unjustified and without merit".

BBC: Lehman trustee is suing Citibank