域名备案号必须带-1吗?三种情况免加后缀全解析,域名备案号后缀-1解析,三种无需添加后缀的情况详解
Must the domain name filing number contain -1? Comprehensive analysis of three situations without suffix addition, Domain name filing number suffix -1 analysis, detailed explanation of three situations without suffix addition
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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