However, the British don't have a history of exporting their foodstuffs, which makes it difficult for restaurants in Hong Kong to source authentic ingredients.
出自-2011年6月閱讀原文
The FBI worked closely with the Archives to determine that the letter was both authentic and definitely Smithsonian's property.
2018年6月四級真題（第二套）閱讀 Section C
柯林斯高階英漢雙解學習詞典釋義
ADJ
真的;真正的;真實的;真誠的
An authentic person, object, or emotion is genuine.