At stake is not just an economic calculation, but also a judgment about the outlook of the single currency itself. For many, the benefits of membership have diminished since the financial crisis, and prospective members, such as Poland, can derive maximum advantage from joining only if they are clear about the economic conditions that must first prevail in their own countries.
这不仅仅是经济上的考量，也事关对单一货币本身前景的判断。对许多人来说，自金融危机以来，加入欧盟的好处有所减少，而对波兰等潜在成员国来说，弄清楚它们一开始会处于怎样的经济环境中再决定加入能够获得最大的好处。