移动设备的有限性、酒店客房缺乏客人可以接受的技术、语言障碍以及不清晰的业务模式，使获取更多的信息变得困难。
Access to further information was a challenge because of limitations of mobile devices, lack of acceptable technology in hotel rooms, language barriers and no clear business model.
本文中，您将会看到模式设计者如何克服障碍实现该功能。
In this article, you see how schema designers overcome barriers to enable this functionality.
“常量”这一集打破了物理和时间旅行的障碍，以及潜在的长达半世纪的旧式讲故事的模式。
"The Constant" broke the barriers of physics and time travel and the potential of a half-century-old storytelling format.
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