If there is no UID 404 on ServerB, then the file does not have an owner on ServerB, and you simply see "404" as the owner when you run a ls -al command.

如果ServerB上没有UID 404，那么ServerB上的文件就没有所有者，那么在运行ls—al命令时只能看到“404”作为所有者。

youdao

Method U. S Standardization Com mission's standard file EP10-T2 was used to select representative ALT and TP. AL T was determined with the enzyme reaction, TP was determined with biuret reaction .

方法采用美国标准化委员会的标准化文件EP10 T2 ，选择具有代表性的丙氨酸氨基转移酶（ALT）、血清总蛋白（TP） ，采用酶法测定ALT ，双缩脲法测定TP。

youdao

While Al-Qahtani and Al-Hamid have tried to file complaints in court, those efforts went nowhere because the court system did not process them, Al-Qahtani said.

CNN: Saudi activists say kingdom trying to silence them

Lawyers for the 73 defendants, who also included al-Masry club staff, can file an appeal.

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And I don't think anybody would -- I think a lot of ink has been spilled over the differentiation between the Taliban and -- certainly rank-and-file members of the Taliban and al Qaeda.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney,