President Chen's purpose in saying that "there is one country on each side and that this must be clear" is simply to emphasize that the ROC is a sovereign independent country that cannot be downgraded, marginalized, or treated as a local government.
陳總統提出「一邊一國、要分清楚」，目的乃在強調中華民國作為一個主權獨立的國家，不能被矮化、地方化與邊緣化。