navel-gazing

• 1.  

  N-UNCOUNT（不可数名词） If you refer to an activity as navel-gazing, you are critical of it because people are thinking about something for a long time but take no action on it. 纸上谈兵[表不满]

  例：

  She dismisses the reform process as an exercise in collective navel-gazing.

  她对这场改革嗤之以鼻，认为只是场无实际行动的集体空想而已。