Its main bridge - a huge concrete structure - now lies concertina ed on the riverbed.

钢筋混凝土结构的主要桥梁,被扭扁坍塌在河床.

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Fanfold: Also called Accordion fold , Concertina fold , Over and back fold , Zigzag fold.

扇形摺: 亦称风琴摺, 之字摺.

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High stone walls topped with snaky concertina wire, set off at intervals by looming guard towers.

顶部装着蛇腹式铁丝网的高高的石墙, 被渐渐隐现的哨塔隔开.

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But their words helped pierce the concrete and concertina wire of the Iron Curtain.

但是这些话穿透了铁幕的水泥墙和铁丝网.

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