信件的英文：
letter

参考例句：

A packet of letters
一捆信件

Arrears of correspondence,ie letters waiting to be answered
待复的信件.

Polish off the arrears of correspondence
匆匆写完待覆的信件.

Shuffled the Bill under a pile of junk mail.
将帐单压在一堆废信件下面

A first - class letter shall get to Scotland in a day.
一类信件一天就可抵达苏格兰。

The letter had been among his correspondence that morning.
这封信就在他那天早晨收到的信件之中。

Postal workers labored overtime to speed delivery of the Christmas mail.
邮电工人加班加点以加速圣诞期间信件的发送。

Three outward-bound envelopes, all marked Private and Confidential, had come through the mailroom
三封标明“密件亲启”的外寄信件送到了邮件收发室。

An intimate letter
私人信件

Circulate a letter
传阅信件.

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。