拒付是用户(合法或非法)拒绝采取某个行动或进行某项交易的能力。如无适当的审计，拒付是很难证实的。

Repudiation is the ability of users (legitimate or otherwise) to deny that they performed specific actions or transactions. Without adequate auditing, repudiation attacks are difficult to prove.

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如无适当的审计，拒付是很难证实的。

Without adequate auditing, repudiation attacks are difficult to prove.

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