Yet sufficient data are not available for most sources extra-budgetary income to make such an estimate.

但用作这类估测的数据都是不充分的。

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At the same time, there is a huge difference between developed regions and under-developed regions at the aspect of relying on extra-budgetary revenue and net income of land transfer.

同时，在对预算外收入和土地出让净收入的依赖程度上，经济发达地区和经济欠发达地区存在着显著的差异性。

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What "s more, a necessary regulation should be made of our existent systems of budgetary and income tax so as to successfully establish and actualize social security tax system."

此外，为顺利建立和实施社会保障税制度，应当对我国现有的财政预算体系和所得税制度进行必要的调整。

youdao

What "s more, a necessary regulation should be made of our existent systems of budgetary and income tax so as to successfully establish and actualize social security tax system."

此外，为顺利建立和实施社会保障税制度，应当对我国现有的财政预算体系和所得税制度进行必要的调整。

youdao