At the University of San Diego, Seible and his colleagues have been testing glass bridge material.

在圣迭哥大学，塞勃和他的同事们已经试验了玻璃桥的材料。

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For these reasons, suspension of the cable must be as much as possible to prevent the extension of the bridge material is as hungry to resist compression.

由于这些原因，悬索桥的缆绳必须尽可能的防止延伸，饿拱桥材料则尽可能地抵抗压缩。

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The material for building the bridge must be very strong so that it may not break in use.

为使桥梁不致在使用中断裂，建造桥梁的材料强度必须非常高。

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So you pick a better material like iron and steel, that makes a better bridge, we know that now because we have experience with bridges, but still your bridge might fail.

你选择了钢铁作为材料,来造了一座更好的桥,我们现在能够明晰这一点,是因为在造桥这件事上我们现在很有经验,但即使是我们现在造的桥也仍然会倒塌

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For example, one thing that could happen is that you build it up with wood and clay, you pick the wrong material for a bridge, and it will not stand up to the forces of nature.

例如,其中的一个问题是,选择了木头和粘土作为造桥的材料,你就选错了材料,这座桥难以与自然力相抗衡

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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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