市场营销的重点在于销售产品或服务，通过广告来吸引客户，同时与客户建立关系。

Marketing focuses on selling your product or service, attracting customers through advertising, and also building relationships with customers.

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Twomey以The Sims Online 作为这类接口的典型，他认为在未来，所有公司都会用到它们，涉及领域包括零售、客户服务、B2B和广告。

Twomey used The Sims Online as an example of the sort of interface all companies in the future will be using, in fields including retail, client services, B2B and advertising.

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该公司现有用户超过2000万，为普通用户提供免费的广告支持版本，以及为企业客户提供付费服务。

The company, which has more than 20 million users, offers a free, advertising-supported version for consumers and a fee-based service for enterprise customers.

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