penetration [ˌpɛnɪˈtreʃən]

例句:

• The floor is sealed to prevent water penetration.
  地板加了密封涂料防止渗水。
  
• Our aim is to achieve greater market penetration.
  我们的目标是进一步打入市场.
  
• He is a man of penetration.
  他是一个富有洞察力的人.
  
• Because our intelligence penetration of Pakistan is pretty good.
  来自VOA
• We didn't show enough penetration, said Ferguson.
  来自BBC
• This wisely limited NG penetration into the electricity market.
  来自SA