The text in the paper seres just to explain the data, and is secondary. 論文中的正文是為解釋數據服務的,因而它是次要的。
Operators could block access or degrade the quality of their data services, but that would antagonise subscribers. 當然,運營商可以阻止此類接入或給他們的數據服務質量降級,但這種行為可能會使他們與自己的客戶敵對。