There has to be greater European-level control over national economic policies.

整个欧盟区的调控不得不高于国家的经济政策。

This stability had come at the cost of being able to implement expansive national economic policies during a crisis.

这种稳定是以国家在经济危机期间实施扩张性经济政策为代价的。

Thus national economic policies, which could not by any twist or turn be confined to state control, drew the slave system and its defenders into the political conflict that centered at Washington.

因此，国家经济政策不能通过任何扭曲或转向局限于国家控制，将奴隶制度及其捍卫者卷入以华盛顿为中心的政治冲突。