律师函的英文：
lawyer's letter

lawyer是什么意思：
n. 律师，法学家

A certificated lawyer.
合格的律师。

My lawyer will agree with the transaction.
我的律师将同意这份和解协议。

He is an able lawyer.
他是一位能干的律师。

He was not allowed access to a lawyer.
他未被允许接触律师。

This lawyer was a tough cookie.
这个律师是个干练的家伙。

letter是什么意思：
n. 字母；信；字面意义；证书，许可证；文学
v. 用字母标明，写字母于；写印刷体字母；赢得校名缩写字母标志

in letter and in spirit
在字面意义和精神实质上|无论形式和实际

The letter was a forgery.
这封信是伪造的。

Post the letter through the slit in the letter box.
把这封信从信箱的投信口投进去。

Imprint a postmark on a letter =imprint a letter with a postmark
盖邮戳于信上

The letter is directed to him.
这封信是写给他的。