Two weeks before the official beginning of summer, a heat wave baked the eastern third of the U. s. and Canada, driving temperatures high into the 90s and even 100s.

在夏季正式开始前两周，一股热浪席卷了占美国国土三分之一面积的东部地区和加拿大，使气温高达华氏90多度，甚至达到了100多度。

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Most of the carbon is returned to near-surface waters when phytoplankton are eaten or decompose, but some falls into the ocean depths. Illustration adapted from a New Wave of ocean Science, u.

大部分的碳会在浮游植物被食用或者分解的时候返回到近地表水域，但仍有一部分被带进了大洋深处。

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These in turn, the dependence on imports form the second wave of impact the U. S. economy.

而这些反过来，又形成对依赖进口的美国经济的第二波冲击。

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The tariff has spurred a wave of anti-American Internet postings in China, with calls for Beijing to stop buying U.S.bonds.

VOA: standard.2009.09.14

The visit by Secretary of State Clinton to Iraq comes on the heels of a wave of bloody suicide-bombings which threaten to destabilize the country, just weeks before U.S.troops are set to withdraw from major Iraqi cities.

VOA: standard.2009.04.25

Age-wave theorists believe that age demographics affect U.S. stock market valuation.

FORBES: The Great Age-Wave Ruse

The ascendancy of interracial marriage is partly fueled by the wave of immigration in recent decades, with U.S.-born offspring of Hispanics and Asians entering adulthood, said Mr. Lichter.

WSJ: Interracial Marriages in U.S. Reach a Record

Bush also drew a picture of his war-planning options amid a wave of sectarian and insurgent violence, continued casualties of U.S. forces and an Iraqi government that the report said is struggling to reconcile the fractious nation's many cultural differences.

CNN: Bush: Iraq benchmarks report 'cause for optimism'