well preserved
adjective uk/ˌwel prɪˈzɜːvd/ us/ˌwel prɪˈzɝːvd/
（尤指年代久远的东西）保存完好的
(especially of something old) kept in good condition
[ before noun ] It was a pretty town with a picturesque harbour and well-preserved buildings. 那是个漂亮的小镇，有风景如画的港口和保存完好的建筑。
mainly UK often humorous（上了年纪的人）保养得好的；不显老的
(of an older person) not looking as old as they really are
[ before noun ] A well-preserved male model can go on working into his forties. 一名保养得好的男性模特儿可以一直工作到四十多岁。