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| Chinese | English |
| 市区老化 | urban decay Condition where part of a city or town becomes old or dirty or ruined, because businesses and wealthy families have moved away from it (由于企业和富裕的家庭已经搬离，一个城市或城镇的一部分变得破旧或肮脏或被毁坏。) |
| 程序控制式衰老 | programed ageing |
| 老年人 | elderly person Someone who has reached the later stage of life or who has attained a specified age within that stage (已经到达生命的后期阶段或者在这个阶段中已经到达某个特定年龄的人。) |
| 衰老调节 | regulation of senescence |