A: I want to send this package by first class mail.

A：我想用第一类邮件寄这个包裹。

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For every person's information in the input list, we first retrieve the country name by the person's E-mail address (line 10 of Listing 3).

对于输入列表中的每个人的信息，我们首先根据电子邮箱地址取得国家名称(清单3的第10行)。

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And it gets worse.By 2020, first-class mail volume is expected to drop by half.

2020年的情况会更糟，一类邮件数量预计将减少一半。

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DVDs are delivered free to subscribers by first class mail, with a postage-paid return envelope, from 58 distribution centers.

ENGADGET: Netflix notches 2 billionth delivery with a Blu-ray disc HD

This year, visitors are delighted to be returning to Bethlehem, where they can send franked letters by first class or by air mail.

BBC: Bethlehem post attracts festive flock

It would force internet-service providers (ISPs) to reveal the identities of users downloading copyrighted material, and would send them two warnings: the first by e-mail, the second by registered letter.

ECONOMIST: Internet regulation in France