It must give up Alsace-Lorraine, a part of France it had held for almost fifty years.

VOA: special.2010.10.28

And, after the Paris region, Alsace and Lorraine were the two most industrialized and prosperous parts of France.

而且,除了巴黎地区,阿尔萨斯和洛林是法国,工业化程度最高,最富庶的地区

耶鲁公开课 - 1871年后的法国课程节选