I do not know which part of the problem and do everything possible to find a cause.

我不知道是哪一个环节出了问题，千方百计地找原因。

youdao

VAT fraud, in which tax is charged as part of a transaction but not surrendered to any government, has long been a problem in the market.

增值税欺诈一直是该市场的一个问题，它是指税赋已经作为交易的一部分征收，但并未向任何政府上缴。

youdao

Is there any part of the problem over which you have control?

难题当中有没有哪一部分是你没法控制的？

youdao

However, he noted that perhaps the differences in the exchanges, which have benefited customers, might have been part of the problem.

FORBES: Regulating Runaway Markets

The Jones case was part of the country's largest investigation, Operation Care, which neatly illustrates the problem.

ECONOMIST: Sex-abuse cases

And they did not provide the mechanisms by which the citizens of the union could feel they were both in part to blame for the problem, as some are, and in a place to help find a solution.

ECONOMIST: The euro crisis: An ever-deeper democratic deficit | The