n. 元(美国、加拿大、澳大利亚等国的货币单位); 一元(纸币或硬币); 美元(币值) dollar的复数
柯林斯词典
N-COUNT 元(美国、加拿大、澳大利亚等国的货币单位) The dollar is the unit of money used in the USA, Canada, Australia, and some other countries. It is represented by the symbol $. A dollar is divided into one hundred smaller units called cents.
She gets paid seven dollars an hour... 她的报酬是每小时 7元。
The government is spending billions of dollars on new urban rail projects. 政府正把数十亿元花在新城市铁路项目上。
The dollar is also used to refer to the American currency system. 美元货币体系
In early trading in Tokyo, the dollar fell sharply against the yen. 在东京市场早市开盘时,美元对日元的比价急剧下跌。
PHRASE 花大价钱 If you pay top dollar for something, you pay a lot of money for it.
Japanese investors once paid top dollar for the most glamorous hotels in the United States. 日本投资者曾为投资美国高档酒店一掷千金。