infrequently [ɪnˈfrikwəntlɪ]

例句:

• Talents like Melody Gardot come along all too infrequently.
  来自BBC
• Still more infrequently are all six parts being improvised.
  来自NEWYORKER
• Eat cured or smoked meats infrequently.
  不要常吃腌制或熏烤的肉.
  
• The bridge is used infrequently.
  那座桥少有人过。
  
• When we are isolated and poor, we are not infrequently forgotten.
  当我们一贫如洗, 离群索居的时候,往往是没人想到我们的.
  
• Some studies suggest that this happens very infrequently.
  来自NEWYORKER