metadata services的用法和樣例：
例句
- 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。 - The systems allow carriers to offer more high-bandwidth data services over their existing fiber-optic access and interoffice networks.
這些系統允許電話公司在現有的光纜接入和局間網路上提供更多的高帶寬數據服務。
