Erosion, of course, is one of the key reasons for its destruction, but human activity is also increasingly responsible.

当然，侵蚀是造成其破坏的主要原因之一，但人类活动应承担的责任也越来越大。

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One key driving force behind bee destruction in Europe and North America has been a type of mite, the varroa destructor pest, which attacks bees and that beekeepers struggle to control, Neumann said.

欧洲、北美的蜜蜂面临的毁灭背后一个关键性的驱动力是一种叫做瓦螨的小虫，它们向蜜蜂发起进攻，而养蜂人则极力想要控制它们，诺依曼说。

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This engagement might take the form. of arrest, dispersal or destruction, depending on the situation, but the key is to build a tactical system of attack that avoids assault.

这种战斗可能是以逮捕，驱散或者破坏的形式进行，依赖于当时的情形，但关键是建立一套避免强攻的战术攻击系统。

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Iraqi President Saddam Hussein issues a decree forbidding the development and trade of weapons of mass destruction - a key demand of Mr Blix during his visit to Baghdad last weekend.

BBC: 'Banned weapons unaccounted for'

In its January 2011 report, the US Financial Crisis Inquiry Commission called the agencies "essential cogs in the wheel of financial destruction" and "key enablers of the financial meltdown".

BBC: Standard & Poor's expects lawsuit over subprime ratings

The key to understanding the destruction of the Constitution lies in its original construction.

FORBES: The Tea Party, and Lessons Learned From the Debt Debacle, Part II