Using the analytic method of the anisotropic element, error estimate for the second order problem is obtained without the limitation of regularity conditions.

利用各向异性单元分析方法得到了二阶问题的误差估计，从而避开了正则性条件的限制。

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These account for perhaps three-quarters of all the laundered money, which means that, in one sense, money-laundering is a second-order problem.

ECONOMIST: Cleaning up dirty money

Second, the Order takes steps to address the problem of over-classification.

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