While violence in Iraq continues to be at its lowest level in years, the president made a reference to problems, saying terrorists continue to try to derail progress.

VOA: standard.2010.08.02

It has, in other words, an internal coherence. It has a dynamism of parts that is strictly with reference to its own existence.

换句话说，这是一个内部的呼应，每一个动态的部分,只为自身整体的存在而存在。

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