To keep an edge up on the competition, you need to do new things and do things differently.

为了保持在竞争中的优势，你就要做一些新的或者是不同的事情。

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Today, commercial aircraft remove ice that accumulates on wings in-flight by redirecting hot air from the jet engines to the leading edge of the wings to keep them warm.

今天，商用飞机主要靠把从喷气式引擎排出的热空气引导到机翼的边缘，使它们变暖，以此来达到除冰的目的。

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Some people worry that price rises may push Sierra Leone back into chaos and keep Côte d’Ivoire on edge.

一些人担心价格的上升会造成塞拉利昂重回动荡，科特迪瓦局势紧张。

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Greece, teetering on the edge of default, will keep investors on the edge of their seats, dictating trading sentiment as it did toward the end of the third quarter.

FORBES: A Transcendental Q3 Comes To An End: Equities Erased All Their Gains For The Year

Several well-placed surprises and unexpected turns not only keep you on edge but also give you the verbal equivalent of sharp slaps in the face.

FORBES: Fact and Comment

But he lives like a king in his 9, 000-square-foot keep on the edge of the Rocky Mountains--one of hundreds of Americans who have bought or built a castle.

FORBES: Castle 4 Sale