等级，同类类别或集团，尤指包含在一数目或级别的序列之中，作为按相同税率征税的收入类别 A classification or grouping, especially within a sequence of numbers or grades, as a category of incomes sharing the same tax rate.
自从政府提高公司税率以来，已有好几家小公司倒闭了。 Several small companies has gone to the wall since the government raised the rate corporation tax.
降低税率使我们有机会得到更多的帮助。 Reducing the tax rates opened the door to more help for us.
