Americans now save more than 5% of their after-tax income, still well below the post-war average but hugely up from only a year ago.

现在美国人的储蓄率占到税后收入的5%多，仍低于战后水平但相对仅一年前增幅巨大。

youdao

Save 15 percent of your income from the time you start working in a tax-sheltered vehicle and you should be fine, although there are no guarantees.

从开始工作起，用税收庇护工具，存15%的收入，就可以了，当然没有保证。

youdao

The reason is simple: A consumption levy would not tax income from saving, and low- and moderate-income people save a lot less than the rich.

FORBES: Do Republicans Really Want to Cut Taxes on the Wealthy and Raise Them on Everyone Else?