The current addressing system—called IPv4—has about four billion possible addresses.

现在的寻址系统称为IPv4，它拥有40亿个有效地址。

youdao

That risks damaging the Internet's vital internal addressing system, which lets people use words instead of Numbers to access websites.

这就存在损害互联网的核心内部地址系统——允许用户使用字词而非数字访问网站——的风险。

youdao

BRAD WHITE: "This marks one of the biggest changes in the Internet's domain name system, the addressing system of the Internet, that has ever occurred."

BRAD WHITE：“这对互联网域名系统来说，标志着自互联网地址系统创建以来最大的变化之一。”

youdao

Currently,and since around nineteen eighty, the addressing system has been IP version 4.

VOA: special.2011.06.13

The government has called for improving the justice system, addressing abuses by all sides, and boosting the economy of the impoverished region to bring peace.

VOA: standard.2009.08.31

Icann was created in 1998 by the US Government to look after the net's addressing system.

BBC: Key internet body spared

When it came to overhauling the Internet's addressing system, the networking wizards did not do things by halves.

ECONOMIST: REPORT: DATA NETWORKS: Upgrading the Internet | The

Internet Protocol version six, or IPv6, is an Internet addressing system designed to expand the number of available IP addresses.

WHITEHOUSE: Office of Science and Technology Policy Blog