例句：

　　A job interview is a very artificial situation.

　　求職面試是一個(gè)非常不自然的場面。

　　The juice contains no artificial preservatives.

　　這種果汁不含人工防腐劑。

　　This food contains no artificial flavourings.

　　這種食品不含人工調(diào)味品。

　　The treatment does not involve the use of any artificial drugs.

　　這種治療不會(huì)使用任何人工合成藥物。

　　He did not want his life to be prolonged by artificial means.

　　他不想靠人為方式延長生命。