So you build it with a material like silver and gold, and then you encounter the problems of society that your bridge might get stolen because somebody thinks they have a better use for silver and gold than your bridge.

但如果你用金或银这样的材料,你又会面对新的问题,你的桥会被偷走,因为有人认为金和银有比造桥更好的用途

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was go to the bridge and walk across the other side and then walk back.

就是到桥上走走，从桥这边走过去再走回来。

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and then over the Pulaski Bridge into Brooklyn and then back home.

再经过Pulaski大桥，到布鲁克林，最后回到家。

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