The debate about "performance and non-performance" has always been the controversial issue in the theory sphere.

关于“表演与非表演”，一直是理论界争论不休的话题。

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We are entitled to cancel the contracts which become overdue owing to the buyer 'non - performance.

我们有权取消因买方不履行而过期的合同。

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The preceding two paragraphs shall not apply if the non-performance of the contract was due to force majeure.

因不可抗力不能履行合同的，不适用前两款规定。

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Brazilian consumer credit non-performance rates (NPRs) ticked up in March to 7.6% after having fallen to 7.4% in February.

FORBES: Bad Debts Rising In Brazil

When it comes to pay for non-performance and monetizing Beltway status, Mr. Rubin set Wall Street's unofficial world records.

WSJ: Review & Outlook: Treasury Gets a Citibanker

The return should reflect such risk factors as the project's technical complexity, the agency's management capacity, the likelihood of cost overruns, and the consequences of under- or non-performance.

WHITEHOUSE: CIRCULAR NO. A-130 Revised