欧盟的劳动力将在今后40年减少近7000万名工人，如果没有大量的净移民，不大幅提高退休年龄，欧洲经济体和社会保障体系将力不从心。
The European Union’s labor force will decline by almost 70 million workers in the next 40 years; in the absence of significant net immigration (combined with a much higher retirement age), European economies and social safety nets will shrivel.