It is based on four key ideas.
本次税改基于四项重要原则。
First, we will cut taxes on all Working American Families. People will pay a lot less money.
首先，我们将削减所有美国工薪阶层家庭的赋税。
Single individuals will not be taxed on the first $12,000 of income earned.
人们将不再负担高额税费。个人所得纳税起征点为$12,000，
And a married couple will pay zero taxes on their first $24,000 of income.
婚后夫妻共同所得纳税起征点为$24,000。
After that, taxable income will be subject to just three tax rates - 12, 25 and 35, it used to be 7.
超过该数额，应纳税收入将分为三档税率-12,25和35，而过去，这一数字是7。
We will also expand the child tax credit, eliminate the credit's marriage penalty,
我们也将扩大儿童税收抵免范围，废除税收婚姻罚款，
and provide a new $500 tax credit for elder-care and other adult dependents.
并为需要养老和成年受赡养者提供多$500的税收抵免。
This is the real and lasting tax relief that everyday Americans badly need and truly deserve.
这场真实持续的税收减免正是所有美国人日思夜想、梦寐以求的，
This is what working Americans have been after.
也是所有美国工薪阶层苦苦追寻的。