公司负责每天处理大量的邮件投递。

The company handles a large volume of ___mailing every day.

我们下周会发出一批产品目录的邮寄件。

We will send out a ___mailing of product catalogs next week.

我们公司每周发送一次电子通讯给订阅用户。

Our company sends out a weekly ___mailing to all subscribers.