Interest is charged at a flat rate of 11%.

利息按标准比率11%收取。

《牛津词典》

Sharp rises increase the chances that some Banks fall flat over their interest rate risk.

利率大幅上升加大了某些银行因利率风险而倒闭的可能性。

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Income from remuneration for personal services, royalties, interest, dividends, bonuses and the lease of property and other income shall be taxed at a flat rate of 20 percent.

劳务工钱所得，特许权力用费所得，利钱、股息、红利所得，财产租赁所得和别的所得，适用比例税率，税率为百分之二十。

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Companies should be allowed to deduct dividend payments from their taxable income just like interest payments are deductible, and there should be one flat tax rate for interest and dividend income.

FORBES: Tax Code Rewards Debt, Penalizes Dividends

So a 4.5% interest rate might well lead to flat or even slightly higher house prices in 2009.

WSJ: Low-Interest Mortgages Are the Answer

Pettit says her research indicates that instead the rate was flat, at around one in five, even after the surge in interest in voting among many young black Americans with Barack Obama in the 2008 race.

WSJ: Why Surveys Should Listen More to Prisoners