分类课税

例句：

1. 1. The government is introducing a new system of taxation to simplify the tax process.
   政府正在引入一种新的税收制度，以简化税收流程。
2. 2.The company has decided to tax all profits at a fixed rate rather than a progressive one.
   该公司决定对所有利润按固定税率征税，而不是按累进税率征税。
3. 3. The tax bracket for high earners has been increased significantly in recent years.
   近年来，高收入者的税率大幅提高。