graduated tax rates

例句：

1. 1.The government has introduced graduated tax rates to help businesses with high profits pay more in taxes.
   政府已经引入了分级所得税率，帮助那些利润丰厚的企业支付更多的税款。
2. 2.The new graduated tax rates are designed to encourage saving and investment.
   新的分级所得税率旨在鼓励储蓄和投资。
3. 3. The graduated tax rates have been revised to reflect the changing economic conditions.
   分级所得税率已经修订，以反映经济状况的变化。