Ns record parsing problem, can't update dns

添加完ns解析记录过了几个小时都无法完成dns更新
查了下子域名的ns服务器还是默认的ns
ns记录配置无异常

–English translation

After adding the ns resolution record for a few hours, I can’t finish the dns update.
After checking the ns server of the subdomain, it is still the default ns.
There is no abnormality in the configuration of ns records.

What is the subdomain?

谢谢你的回复,我已经解决了此问题。

–English translation

Thank you for your reply, I have resolved this issue.