Despite its rapid growth, Twitter still falls far behind activity on rival social sites.

尽管twitter高速增长，但活跃度仍远远落后于竞争对手的社交网络。

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China's devaluations put pressure on rival exporters to do the same or risk losing their competitiveness.

中国货币的贬值给同样出口的竞争对手带来了压力，如果他们不同样贬值货币，就可能会失去竞争力。

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When signed, the law may well be ineffective. Copyright-holders may step in at Apple's behest and prevent their music being played on rival devices.

但即使该法案获得生效签署，他也发挥不了多大的作用，著作权持有者有可能会遵照苹果公司的意愿而拒绝该音乐对于其他竞争对手音乐播放器的支持。

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AC will take on rival Inter Milan on Sunday in Foxboro,Massachusetts.

VOA: standard.2009.07.25

In any case, Aristotle returned to Athens later on and established a school of his own, a rival to the Platonic Academy " that he called the Lyceum.

无论如何，亚里士多德后来回到雅典,并建立了他自己的学校，和柏拉图的学院打擂台,他称之为，“学园。

耶鲁公开课 - 政治哲学导论课程节选

Boeing's rival Airbus put on a show of its own, with its A380 double-decker soaring above potential buyers.

VOA: standard.2010.07.23

Two European companies and one American company are working on rival designs to FastShip's, including multi-hulled vessels.

ECONOMIST: Fast container ships

He blamed some of the customer switching on rival power suppliers offering attractive introductory deals to lure customers.

BBC: SSE sees half-year profits rise 38.3%

There will be congressional votes on rival measures giving each side exactly what it wants, and they will fail.

WSJ: Talks on Tax Cuts Set Stage for 2012 Campaign