简单邮递发送协议 (簡單郵遞發送協議) jiǎndān yóudì fāsòng xiéyì

jiǎndān yóudì fāsòng xiéyì proper noun Simple Mail Transfer Protocol (SMTP)
Domain: Computer Science 计算机科学 , Subdomain: Networking , Concept: Protocol 协议
Notes: (Wikipedia '简单邮递发送协议')