Economic prosperity depends critically on an open world trading system.

经济繁荣关键取决于一个开放的世界贸易体系。

《柯林斯英汉双解大词典》

In the 1940s, ATC centres could and did take advantage of the newly developed radar and improved radio communication brought about by the Second World War, but the system remained rudimentary.

在20世纪40年代，空中交通管制中心能够而且确实利用了第二次世界大战中新研制的雷达和改进的无线电通讯，但是这个系统还处于初级阶段。

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In those years, just after World War I, the military wanted to build an American highway system for national defense.

在第一次世界大战后的那些年里，军方希望为国防建设一个美国公路系统。

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Yet,every day,Americans depend on their transportation system to keep them, and the largest economy in the world, on the move.

VOA: special.2010.01.11

That is to say, it is not a system of signs understood as stable relationships between a concept world and a world of signifying.

也就是说，它不是一个符号系统，这个符号系统被理解为,概念世界和指示世界间的稳定的关系。

耶鲁公开课 - 文学理论导论课程节选

So we have system insulated from the outside world, and we have two bulbs.

我们有一个与环境隔绝的系统，和两个腔体。

麻省理工公开课 - 热力学与动力学课程节选

Android has leapfrogged Apple's iOS mobile operating system to become the most widely used smartphone operating system world-wide.

WSJ: Google Android Chief Andy Rubin Steps Aside

But at the same time, we must recognize that the world financial system is the circulatory system for the world economy.

FORBES: Teaching Business In A Time Of Crisis

On the 40th anniversary of the UNESCO Convention Concerning the Protection of the World Cultural and Natural Heritage, the 30th anniversary of the declaration of Old Havana and its fortress system as World Heritage Sites, and the 20th anniversary of the UNESCO Programme "Memory of the World", a press conference was held on Tuesday, November 30.

UNESCO: MEDIA SERVICES