Barrier



GRE TOEFL 考研

解释

GRE 红宝书

Rusted Train Bridge Barrier

• n.路障, 障碍
• ［英］ n.路障, 障碍 ( obstruction as of a fence, wall; obstacle)

Webster Collegiate

noun

• Etymology: Middle English barrere, from Anglo-French, from barre bar
• Date: 14th century
• 1.
  • a. something material that blocks or is intended to block passage <highway barriers><a barrier contraceptive>
  • b. a natural formation or structure that prevents or hinders movement or action <geographic barriers to species dissemination><barrier beaches><drugs that cross the placental barrier>
• 2. plural, often capitalized a medieval war game in which combatants fight on foot with a fence or railing between them
• 3. something immaterial that impedes or separates ; obstacle <behavioral barriers><trade barriers>

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