barriers的例句（barriers在句子中的用法）

• Several red and white barriers marked the road at intervals of about a mile... 路上设有几处红白相间的路障，相互间隔约一英里。
• ...federal barriers to interstate banking. 联邦政府对州际银行业设置的障碍
• These man-made barriers will ensure a very high degree of protection... 这些人造屏障将会确保提供高度的保护。
• The demonstrators broke through heavy police barriers... 示威者们冲破了警察的重重设防。