读者咨询卡的英文：
business reply mail

business是什么意思：
n. 商业，交易，生意；公司，商店；事情；职责

Be engaged in; be Busy in
从事于

to sit for business
因公滞留

As Busy as a bee
(象蜜蜂)忙忙碌碌的

reply是什么意思：
v. 回应，答复，做出反应
n. 回答，答复

Reply to the sender and all the recipients Reply to the sender and all the recipients Reply All
回复发件人和所有收件人，回复发件人和所有收件人，回复全部

Post reply to the Newsgroup and mail a reply to the author
将回复消息投递到新闻组并向作者回复一个邮件

His challenge draws no reply.
他的挑战没有引出回答。

mail是什么意思：
n. 邮政，邮递；邮件；盔甲
v. 邮寄；给…穿盔甲

Send the memo by express mail.
把这份备忘录用快递寄出。

mail and luggage van
邮政行李车

This parcel came in the mail today.
这个包裹是今天邮来的。