Moreover-though it seems an outlandish thought in the middle of a deep recession and rising unemployment-ageing populations are likely to cause Labour shortages.
Researchers only observed these differences from middle-age onwards, suggesting that brains may be particularly vulnerable during this period of ageing.
研究人员只是从中年个体中发现了这些差异，这意味着随着人们年龄增长，大脑会变得越来越脆弱。
3
The application of dynamic strain ageing during cycling creep of Al-Mn alloys , consisting of various compositions, is studied at the middle temperature in this paper.