我父亲65岁退休后开始学习绘画。

My father started learning painting after he ___retired at 65.

这辆老式火车已经退役，现在被陈列在博物馆里。

The old train has been ___retired and is now on display in the museum.

潮水慢慢退去，露出了沙滩上的贝壳。

The tide slowly ___receded, revealing seashells on the sand.