China is the first and only country to have commercial high-speed train service on conventional rail lines that can reach a top operational speed of 350 km/h.

中国是第一个也是唯一一个在传统轨道线路上，拥有最高运营时速达到350公里的商业高速列车运行服务的国家。

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The U.S. Congressional Research Service has estimated that between 1998 and 2001, Pyongyang earned an average of about $250 million a year from conventional weapons sales.

美国国会研究服务处(U.S. Congressional Research Service)预计1998至2001年期间，平壤平均每年的常规武器销售额约为2.5亿美元。

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The service, which is a direct competitor to Apple TV, would integrate conventional broadcasts with video-on-demand services such as YouTube and Hulu.

该项服务对苹果电视构成直接威胁，它将把传统的广播公司与自选影像服务公司如You Tube和Hulu联合起来。

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Trust spokesman John Oliver told BBC News the additional staff would be able to provide a "conventional" ambulance station service for the growing local community at the new town of Cranbrook.

BBC: Specialist ambulance HART hub planned for Skypark

But service productivity growth defies conventional thinking.

FORBES: All of Your Urban Policy Research Needs In One Place

Conventional wisdom posited: Build up your service business and protect the franchise.

FORBES: Digital rules