dollar

1.[c]元（美国、加拿大、澳大利亚等国的货币单位）the unit of money in the US, Canada, Australia and several other countries

You will be paid in American dollars.你的报酬将以美元支付。

2.[c]一元（纸币或硬币）a banknote or coin worth one dollar

Do you have a dollar?你有一元钱吗？

a dollar bill一元钞票

3.[sing]美元（币值）the value of the US dollar compared with the value of the money of other countries

The dollar closed two cents down.美元收跌两美分。