The existing system of Internet top-level domain name including the support of only 26 English letters and Arabic numerals and a hyphen 0-9, 37 characters.

 
  • 现有的互联网顶级域名体系只支持包括26个英文字母、连字符和阿拉伯数字0至9在内的37个字符。
今日热词
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