write on 寫在...上的意思,寫
例：Write on the form that you stayed so many nights at so much per night.
把你住了幾個晚上、 每晚多少錢,填在這個表上.
write down 寫下來
例：Write down the address before you forget it.
把地址寫下來,省得忘了.
write with 用...寫
例：Fewer people write with their left hand than with their right.
用左手寫字的人比用右手的少.