To really understand this theory and the differences between RT and the traditional approaches, we need a clear understanding of the basic concepts.

要真正弄懂关联理论，了解该理论与传统理论之间的差别，就必须先弄清关联理论的基本概念。

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In order to facilitate the dialogue between the different researchers and to establish a common discourse platform for them, we need a clear concept of the Ocean Society.

为了便于不同研究者进行对话，更甚至为了给研究者们搭建共同话语平台，我们需要一个清晰的海洋社会概念。

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We need a clear understanding of the problems involved.

我们需要了解清楚所涉及的各种问题。

《牛津词典》

We need a clear endorsement by governments and all aviation stakeholders to venture beyond today's limitations.

ENGADGET: Air Canada embarks on its first biofuel-powered flight from Toronto to Mexico City

To overcome this danger, we need a clear and consistent strategy, and the means to achieve it.

CNN: Thompson's November 13, 2007, speech to The Citadel

To prevent this, globally we need a clear change in economic strategy.

BBC: India: Boom what boom?