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
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。