然而，国有化也可能会在导致机构管理层消亡的同时，破坏机构与国会长期以来建立的纽带。

Nationalisation would probably also lead to the removal of both institutions’ managements, and undermine the cosy ties the agencies have long had with Congress.[size=10.5pt]

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工程师们长期以来一直在建立了很多模型。

Engineers have been building models for a long time.

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长期以来，雅虎不仅与大型广告主之间建立了长久且深入的关系，而且其核心业务始终赢利。

Yahoo has long and deep relationships with the biggest advertisers on the web and a core business that is profitable.

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