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人口老化,population ageing,是人們經常討論的問題。Age除了是名詞,解作年齡或時代之外,也可作動詞,解作老去、老化。例如:
一、As he aged, his memory got worse.(隨着年齡增長,他的記性差了。)
二、He is ageing rapidly.(他衰老 ...