3元钱英语怎么写

I pay three yuan for a laptop.

this is three yuan .

this is 3yuan.如果是这个3元那么就是It is 3yuan.

I bought a notebook with 3 yuan

I only paid 3yuan for a note-book

This is three yuan.

Three yuan for each./3yuan per...How much for one hour?

one yuan...............1元钱two yuan...............2元钱one hundred yuan.......100元钱one thousand yuan......1000元钱（这个是RMB）one dollar................1美元two dollars...............2美元one hundred dollars.......100美元one thousand dollars......1000美元（这个是美元）