obstruction [əbˈstrʌkʃən, ɑb-]

例句:

• The boy was suffering from a bowel obstruction and he died.
  这个男孩因患肠梗阻死去了。
  
• the obstruction of justice
  妨碍司法公正
  
• The asylum seekers had to contend with continued bureaucratic obstruction.
  寻求政治庇护的人得不断地应付官僚主义的层层阻挠.
  
• The obstruction can also be within the vessels themselves.
  来自BBC
• "This obstruction is inexcusable," he said.
  来自VOA
• All they can be arrested for is causing an obstruction.
  来自Independent