ageing
adjective UK (US aging) uk/ˈeɪ.dʒɪŋ/ us/ˈeɪ.dʒɪŋ/
衰老的，變老的;老化的
relating to getting older
the ageing process 衰老的過程
年老的;老化的;过时的
used to describe a person or thing that is getting old
an ageing Hollywood actor 上了年纪的好莱坞演员
ageing computers/machinery 落伍的电脑／老化的机器