ISP
noun [ C ] uk/ˌaɪ.esˈpiː/ us/ˌaɪ.esˈpiː/
因特网服务提供商（Internet Service Provider的缩写）
abbreviation for Internet Service Provider: a company that provides use of the internet, allows you to use email, and gives you space on the internet to show documents
Some ISPs are free and give you as many email addresses as you want. 有些因特网服务提供商提供免费服务，对用户申请的电子邮件地址没有数量限制。