'...very old people here (over 55 years old). ...their mind is n

来源: 于 2016-09-27 13:23:45 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

'There are lots of very old people here (over 55 years old). Their knowledge is out of date and their mind is not very clear either.'

Are they healthly people?