In fact, with a total GDP of US$7.75 trillion and a population of over 2 billion, East Asia is already a strong rival for Europe and North America. However, due to political reality and other historical factors, progress toward a common market and a single currency has been slow, and greater efforts on the part of East Asian nations, particularly China, Japan and Korea will be needed. The simple fact is that the economic power of North-East Asia is nearly 10 times that of South-East Asia, and without the participatioon of China, Japan and Korea, any talk of economic integration of East Asia is but an empty promise.
上面是我用英语思维为你翻译的。
我把“东亚区域统合”译为 economic integration of East Asia ， 因为我觉得这里说的是“经济统合”而不是“政治统合”。
这是我自己的翻译。
保证地道、语法正确。
希望对你有帮助。