Uncertainty is a key contributor to demand destruction.

不确定性是需求破坏的主要促成因素。

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Collagen forms a meshwork of fibres and is a key contributor to the structure and texture of skin.

胶原蛋白形成网状的纤维，是一个重要贡献的结构和纹理的皮肤。

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Quintiles also will be a key contributor to Merck Serono's future clinical trial design activities.

昆泰也将成为默克雪兰诺未来临床试验设计活动中的一个关键因素。

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"Tourism in the Alps is a key contributor to the economy of Alpine countries, " the OECD said.

BBC: Will this become an increasingly rare sight?

The McRib was a key contributor to a 4.8 percent increase in company sales in November 2010.

FORBES: From McRibs To Maseratis: The Power Of Limited Access

The industry provides employment to about four million people and is a key contributor to the Bangladesh economy.

BBC: Dhaka building collapse: EU considering action