column with NOT NULL constraint) the data changes are rolled back to an
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，更多细节参见爱思助手
圖像加註文字，旨在模擬真實世界語言學習的實驗，有時能帶來令人驚訝的快速成果我很快就依賴起自己已有的語言知識。例如，我知道印地語中 saap 意為「蛇」，而當我聽到 sapo 這個詞、並在螢幕上看到一隻青蛙時，我便把這個字與畫面配對起來。
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Sir Stephen Fry, Hay Festival president, described the event as a "carnival of ideas", while former US President Bill Clinton once called it the "Woodstock of the mind".