Barrier的结果
Barrier
(n.)
A carpentry obstruction, stockade, or other obstacle made in a passage in order to stop an enemy.
Barrier
(n.)
A fortress or fortified town, on the frontier of a country, commanding an avenue of approach.
Barrier
(n.)
A fence or railing to mark the limits of a place, or to keep back a crowd.
Barrier
(n.)
An any obstruction; anything which hinders approach or attack.
Barrier
(n.)
Any limit or boundary; a line of separation.