authenticated

例句:

• Official and authenticated sites carry the Information Standard brand.
  来自BBC
• The date of manufacture of the jewellery has not been authenticated.
  这些珠宝的制造日期尚未经证实.
  
• All the antiques have been authenticated and recorded.
  所有的古董都已经过鉴别并进行记录。
  
• The letter has been authenticated by handwriting experts.
  这封信已由笔迹专家证明是真的。
  
• The statement could not immediately be authenticated.
  来自VOA
• Police have not authenticated either claim.
  来自VOA