He imagined a world in which organisms battled for supremacy and only the fittest survived.

在达尔文的头脑中，存在这么一个世界：里面的生物都在为了谁将成为最优秀的物种而战斗，且最终只有最适者才能生存。

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The Wall Street Journal said Google is aiming to challenge thee-commerce supremacy of Amazon. com by diving deeper into the fast-growing world of Internet retailing.

《华尔街日报》称，谷歌正加大力度进军迅速增长的互联网零售业，试图借此挑战亚马逊在电子商务领域的霸主地位。

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Regaining lost supremacy can be very difficult, partly because new geographic centers of technological excellence can and do emerge on the world stage, seemingly out of nowhere.

重拾失去的主导地位可能很困难，部分原因在于新的优秀技术中心似乎能够、而且也的确会突如其来地登上世界舞台。

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Smith sees a clear distinction between the two world views vying for regional supremacy in the Middle East.

VOA: standard.2010.03.18

Christie's and Sotheby's, in their neck-and-neck battle for art-world supremacy, continue to prove that art is a stellar investment in these volatile economic times.

FORBES: Scintillating Cezanne, Sizzling Season

The first worry is about direct competition for things that are in more or less fixed supply: geopolitical supremacy, the world's oil and raw materials, the status and perks that come with being the issuer of a trusted international currency.

ECONOMIST: A game of catch-up

Harlan Loeb, the region's counsel for the Anti-Defamation League, a Jewish civil-rights organisation, reckons that the World Church of the Creator is one of the fastest-growing white supremacy groups in the country.

ECONOMIST: Racism