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轉碼失敗！請您使用右上換源切換源站閱讀或者直接前往源網站進行閱讀！轉碼失敗！請您使用右上換源切換源站閱讀或者直接前往源網站進行閱讀！was about to turn 30!He is currently married. If he operates correctly, his son will be born the following year. By the time he reaches 50 years old, his son will only be 16 years old. What qualificat...