High marginal tax rates may act as a disincentive to working longer hours.

边际税率过高也许会抑制加班时间。

《柯林斯英汉双解大词典》

Tax rates compare unfavourably with the less heavy-handed North American agreement.

税率比起较为宽松的北美协议更糟。

《柯林斯英汉双解大词典》

Falls in marginal tax rates in America since the 1970s have made it all the more profitable to work longer.

自20世纪70年代以来，美国边际税率的下降使得延长工作时间更有利可图。

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The chairmen propose to simplify the tax laws and reduce tax rates.

VOA: special.2010.11.19

If you go to look at congressional discussion of tax rates, you won't see risk management mentioned very often.

如果你看过国会有关税率的讨论，就会发现“风险管理“出现的频率并不高。

耶鲁公开课 - 金融市场课程节选

The only other time that happened was when there was sort of talk of their losing their tax exemptions and tax rates were going down.

其他时间唯一可能发生的是,有一些传闻说,他们不再免税或者税率下降。

耶鲁公开课 - 金融市场课程节选

Federal estate tax rates remains constant at the current rates for all pertinent times.

FORBES: The Unified Credit Freeze, Not the Philly Freeze

But class-warfare tax rates on the rich do serve a very important political goal.

FORBES: Will "Hauser's Law" Protect Us from Revenue-Hungry Politicians?

In the postwar U.S., higher top tax rates tend to go with higher economic growth not lower.

WSJ: Diamond and Saez: High Tax Rates Won't Slow Growth