extant       
adjective  formal /ekˈstænt/ /ˈek.stənt/ /ekˈstænt/ us/ˈek.stənt/
 现存的;尚存的
used to refer to something very old that is still existing
  We have some extant parish records from the 16th century. 我们保存了一些16世纪留下来的教区记录。 
 Synonym: surviving
Compare: extinct