Write their full names, three-letter code and one letter code.
请写下它们的全名、三字码与单字码。
The type of organization is identified by a three letter code called a 'top level domain name.
组织的类型是通过三个字母的代码(被称作顶级域名)来定义的。
The type of organization is identified by a three letter code called a 'top level domain name.
组织的类型是通过三个字母的代码(被称作顶级域名)来定义的。
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