This server is your primary DNS server location.

该服务器是您的主dns服务器位置。

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Secondary DNS servers transfer their zone information directly from the primary DNS server and keep a copy locally.

辅助DNS服务器直接从主dNS服务器传输其区域信息，并在本地保留副本。

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If your system has a primary and secondary DNS server, and 4 global DNS servers to test, only the best 4 regional DNS servers will be used in the benchmark.

如果您的系统已有一个首选和备用DNS服务器，要对另外4全球DNS服务器进行测试，则只有最好的4个区域DNS会被用在基准测试里面。

youdao

If your system has a primary and secondary DNS server, and 4 global DNS servers to test, only the best 4 regional DNS servers will be used in the benchmark.

如果您的系统已有一个首选和备用DNS服务器，要对另外4全球DNS服务器进行测试，则只有最好的4个区域DNS会被用在基准测试里面。

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