In Sichuan, soldiers spent a hard time creeping across Luding Chain Bridge, which was made up of 13 iron chains, in the middle of gun fire.

在四川，士兵们在炮火中艰难地爬过由13条铁链组成的泸定铁桥。

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But why did they use iron chains to chain up the pillars?

可是为什么要用铁链把这些柱子拴起来啊？

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The scenes 10 years ago were recalled again: Holding hands on the bridge with iron chains, roaming on the path in the woods, the place where he kissed her.

10年前的景象又回现，牵手的那座铁索桥，漫步过的林间小道，和他曾经吻过女孩的地方。。。

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