money changing 兑换货币

an exchange form 兑换单

bank note 钞票

note of large denomination 大票

note of small denomination 小票

small change 零钱

subsidiary money 辅币

nickel piece 镍币

plastic currency notes 塑料钞票

convertible money 可兑换（黄金）纸币

What's the interest rate for the savings account?

储蓄存款的利率是多少？

Do you pay interest on this account?

这种存款付给利息吗？

Please tell me what the annual interest rate is.

请告诉我年利率是多少。

Interest is paid at the rate of 1% per annum at present.

目前每年的利率是1%。

It allows you to earn a little interest on your money.

这可使你从存款中获得一点利息。