Network routing experts have been aware of the limitations of IPv4 addressing since the 1980's — before most of the world even knew the Internet existed, and before the Web became ubiquitous.

网络路由专家，早在80年代在世界上大多数人还没知道互联网之前，在互联网变得无处不在之前就意识到IPv4的局限性。

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Network routing experts have been aware of the limitations of IPv4 addressing since the 1980's — before most of the world even knew the Internet existed, and before the Web became ubiquitous.

网络路由专家，早在80年代在世界上大多数人还没知道互联网之前，在互联网变得无处不在之前就意识到IPv4的局限性。

youdao