In contrast, the Central Kingdom's periods of stability and prosperity occurred during sustained warm spells, the researchers said.

研究者还说，与此相反的是中原稳定繁荣时期气候刚好都处于温暖期。

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By contrast, a sustained period of 4% growth would do far more to narrow the deficit and shrink the federal government as a share of GDP than any combination of tax rate increases and spending cuts being proposed by either party.

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In contrast the Blues chose to boot two difficult penalty chances to touch, the second leading to a sustained assault on the Northampton line that saw Saints centre James Downey sent to the sin-bin for killing the ball.

BBC: Blues 19-23 Northampton