堵塞to be blocked

• 鼻子闭塞

  have a blocked-up nose

偏僻inaccessible

• 闭塞地区

  out-of-the-way place

• 交通闭塞

  hard to get to

不开通illiberal

不灵通ill-informed

• 消息闭塞

  be uninformed of events

【铁路】block signalling(Britain); block signaling(US)

• 闭塞信号

  block signal

【理】blocking

【气】occlusion

【医】emphraxis