Simultaneously, many countries are getting rid of traditional progressive tax principle — rising the tax rate along with the increasing of revenue, and transferring to single tax system mode.

同时，许多国家都在摆脱传统的累进税收原则，也就是随着收入水平的提高税率不断提高的方式，而转向了单一税制的模式。

youdao

Simultaneously, many countries are getting rid of traditional progressive tax principle — rising the tax rate along with the increasing of revenue, and transferring to single tax system mode.

同时，许多国家都在摆脱传统的累进税收原则，也就是随着收入水平的提高税率不断提高的方式，而转向了单一税制的模式。

youdao