A lifetime of speaking two or more languages appears to pay off in old age, with recent research showing the symptoms of dementia can be delayed by an average of four years in bilingual people.

在一生中都通过两种或多种语言交流的多语者到了年老终于会得到上天的偿还。最新的一项研究显示，双语者出现老年痴呆症的症状会比普通人平均推迟四年。