ageing of column

例句：

1. 1. The elderly person needs extra care due to his ageing health.
   由于年老体衰，这位老人需要额外的照顾。
2. 2. The plant's leaves are starting to age and yellow.
   这植物的叶子开始变黄了。
3. 3.The old house is showing signs of ageing, and it needs repairs.
   这座旧房子出现了老化的迹象，需要进行修缮。