A fort made in haste of such materials as are nearest to hand, and serving to obstruct an enemy or shield a besieged party.

紧急筑成的防御工事。

Any bar or obstruction; hindrance.

界藩；障碍物；路障；阻碍。

To obstruct or stop up; fortify or enclose by a barrier.

以障碍阻塞；设路障于。