40美元英语是：40 dollars。

dollars：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

扩展资料

It costs between 40 and 45 dollars.

它大概介于40到45美元之间。

You can be paid in pounds sterling or American dollars.

可以付你英镑，也可以付你美元。

The loan was denominated in US dollars.

The bank has a share capital of almost 100 million dollars.

该银行的股份资本有近1亿美元。