Her vision remains unimpaired at 83.她活到83岁时视力依然很好。

His health and vigour were unimpaired by a stroke.他的身体和精力并没有受到中风的影响。

Queen Milena possessed great beauty, which she retained unimpaired in advancing years.米莱娜女王美貌绝伦, 而且她的美并没有随着岁月的流逝而有所减退。