Write down
寫下；記下
I wrote his phone number down lest I forget it.
我把他的電話號碼記下來, 以免忘記。
Write in
（向電視臺等機構）寫信表態，寫信索取
They have written in to the TV station to express their grievances.
他們已經寫信給電視臺表達他們的不滿。
將…插寫進去，把…寫入(或補進)
The author revised his novel and wrote a new character in.
作者修改了他的小說並加進了一個新的角色。
Write back
寫回信; 回覆
Mark wrote back saying that he couldn’t attend her wedding.
馬克回信說他參加不了她的婚禮。
Write up
把…記下；報道；詳細記敘寫下來
He wrote up the press conference and sent it to his editor.
他寫了關於新聞發佈會的報道並把它發給了編輯。
寫傳票傳喚；對…提出控告
He was written up for breaking the traffic regulations again.
他因再次違反交通規則而被警察傳喚了。
Write off
勾銷（債務）
For some reason, they have to write off the debt.
出於某種原因，他們不得不勾銷債務。
把（車輛）毀壞，使（車輛）報廢
He wrote his new car off in the accident.
他的新車在事故中報廢了。
不費力地寫成，流利地寫下來
He wrote off the report in an hour.
他在一小時內把報告寫完了。
Write out
取消 (某一角色); 去掉（電視劇中的）角色
His character has been written out of the TV series.
他的角色已從這部電視連續劇中去掉了。