unimpaired [ˌʌnɪmˈperd]

例句:

• Although he's ninety, his mental faculties remain unimpaired.
  他虽年届九旬，但头脑仍然清晰。
  
• Queen Milena possessed great beauty, which she retained unimpaired in advancing years.
  米莱娜女王倾国倾城，她的美貌并没有随着岁月的流逝而褪减。
  
• His health and vigour were unimpaired by a stroke.
  他的健康和精力在经历了一次中风后没有受到影响。
  
• The unimpaired picture is included to serve as a reference, but the observers are not told which the reference picture is.
  来自BBC
• One of each pair of test clips is unimpaired while the other presentation may or may not contain impairment.
  来自BBC
• He can, however, talk his way through a lyric and walk his way through a dance in a way that leaves his authority unimpaired.
  来自NEWYORKER