Organizers say they're holding the games in a closed loop system.

组织者说，他们将在一个闭环系统中举办奥运会。

China has some of the strictest rules on the planet and they include the country's closed loop system for the Olympics.

中国采取了一些世界上最严格的规定，其中包含了专为冬奥会设立的闭环系统。

China's closed loop system keeps them separate from the rest of Beijing as they train, compete or hang-out in the Olympic Village.

中国的闭环系统使得参赛选手在奥运村训练、比赛或闲逛时都与北京其他区域分隔开来。

There's also questions about whether Loop systems would actually work outside  of a city like Las Vegas.

还有一个问题是 Loop 系统是否真的可以在像拉斯维加斯这样的城市之外工作。