人们普遍认为欧洲国家无法独自解决我们这个时代的重大问题，包括气候变化、移民、全球化的经济挑战以及最重要的安全。
It is generally agreed that European countries cannot cope alone with the major problems of our time, such as climate change, immigration, the challenges of a globalized economy, and, above all, security.