Yet three internal fault lines are making it difficult for the EU to achieve these ends. Britain is wondering whether it should exit.
但三条内部的断层线让欧盟难以实现这些目标。英国正在 犹豫是否应该退出欧盟。西欧和东欧在难民问题上针锋相对。法国和德国的重点也有所不同。