电子邮件服务
先理解核心含义，再看它在真实句子里的用法。
电子邮件服务
a service that allows users to send and receive electronic messages via the internet
I switched to a new email service provider.
我换了一家新的电子邮件服务提供商。
电子邮件服务
a service that allows users to send and receive electronic messages via the internet
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Dictionary facts from AI_SUPPLEMENT.