unsubstantiated
英 [?ns?b'st?n??e?t?d]
美[,?ns?b'st?n??et?d]
考試真題
- There are reports that some military aircraft flew in formation when they were low on fuel during the Second World War, but Dr. lissaman says they are unsubstantiated.
2010年考研真題（英語二）閱讀理解 Section Ⅱ