英语词汇“proportion of aged population”的中英文释义、用法、翻译及短语词组-英汉翻译词典-东流网

单词	proportion of aged population
释义	proportion of aged population 英?[pr??p?:??n ?v ?e?d??d ?p?pju?lei??n] 美?[pr??p?r??n ?v ?ed??d ?pɑpj??le??n] 释义老年人口比例行业词典药学老年人口比例???
随便看	oil-piping oilpiping oil piping arrangement oil piping installation oil piping layout oil piping system oil pistol oil piston ring oil pit oil-pitch oil pitch oil plam oil-plant oil plant oilplant oil plants oil platform oil-platform oil platforms oil play oil-plug oil plug oil plug nut oil-pneumatic rotary drive oil pneumonia

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proportion of aged population