The number of pigs produced locally has doubled during this period. But the production of chickens on local farms was below the level attained before the outbreak of avian influenza in 1997.

期间本地繁殖的猪只数目增加了一倍，但鸡只数目则低于1997年禽流感发生前的水平。

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The baseline entrance level is only available by invitation; access to sensitive information is restricted solely to those users who have attained the highest levels.

入门级别的访问权限需要邀请才能获得。只有拥有最高级别访问权限的用户才可以访问敏感信息。

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Your attitude contributes to the level of success attained.

你的态度决定成功的水平。

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But a high level of safety can be attained if the public is willing to endure significant inconveniences, according to former CIA analyst Michael Scheuer.

VOA: standard.2009.12.30

The LCI currently stands close to the level attained at the onset of the 2007-2008 recession.

FORBES: Survey: Affluent Households Lack Confidence in the Economy

Total employment is below the level first attained in the second quarter of 2006 and it is declining.

FORBES: Worst Institution in the World Continues to To Spread Human Misery; Ryan Avent Shocked

Meyer earned his pay during his tenure at Florida returning the program to the high level it attained under Steve Spurrier during the 1990s.

FORBES: Urban Meyer Is Out At Florida