bar·ri·er /ˈbæriɚ/
 柵欄,障礙,壁壘,關卡


 bar·ri·er /ˈbærɪɚ/ 名詞
 屏障,障壁,障礙物,阻擋層


 barrier
 隔離 屏障 障蔽


 Bar·ri·er n.
 1. Fort. A carpentry obstruction, stockade, or other obstacle made in a passage in order to stop an enemy.
 2. A fortress or fortified town, on the frontier of a country, commanding an avenue of approach.
 3. pl. A fence or railing to mark the limits of a place, or to keep back a crowd.
    No sooner were the barriers opened, than he paced into the lists.   --Sir W. Scott.
 4. Any obstruction; anything which hinders approach or attack. “Constitutional barriers.”
 5. Any limit or boundary; a line of separation.
    'Twixt that [instinct] and reason, what a nice barrier!    --Pope.
 Barrier gate, a heavy gate to close the opening through a barrier.
 Barrier reef, a form of coral reef which runs in the general direction of the shore, and incloses a lagoon channel more or less extensive.
 To fight at barriers, to fight with a barrier between, as a martial exercise. [Obs.]

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 barrier
      n 1: a structure or object that impedes free movement
      2: any condition that makes it difficult to make progress or to
         achieve an objective; "intolerance is a barrier to
         understanding" [syn: roadblock]
      3: anything serving to maintain separation by obstructing
         vision or access