单词：silicon_valley 

名词

• 
  [1.n.silicon_valley] (同义词:[Silicon_Valley(硅谷(美国一高科技区名) )]  )
• 
  注释列句：a region in California to the south of San Francisco that is noted for its concentration of high-technology industries
• 实 例 -> [geographical_area] 
  部分总称 -> [California( n. 加利福尼亚, 加州 )] 
  所有总称 -> [California( n. 加利福尼亚, 加州 )]