gaps

例句:

• Fill in gaps by using short, upward strokes of the pencil.
  用铅笔向上短短地勾画几道来填充空白。
  
• There were gaps in their counterterrorist strategy.
  他们的反恐战略存在漏洞。
  
• Contraction of the timbers left gaps in the fence.
  木料收缩,结果围墙露出缝来.
  
• These are the gaps we have at the moment.
  来自BBC
• The car lurched and bumped in the great gaps.
  来自D. H. Lawrence
• Many years of TERC produced large math achievement gaps.
  来自SA