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

耶鲁公开课 - 生物医学工程探索课程节选

Then the relative price of gold versus silver shifted to the point that the gold with at the twenty-one shilling exchange rate the gold shilling was worth less the gold guinea was worth less than twenty-one shilling.

之后，金子相对于银子的相对价格,就移动到另一个值,在二十一个先令的兑换率下,金先令价值少于,金几尼的价值少于了二十一个先令的价值。

耶鲁公开课 - 金融市场课程节选

And here in the middle of the page a little ways down: My love's striped black-and-white cotton frock, jaunty blue cap, white socks and brown moccasins were not quite in keeping with the large, beautifully cut aquamarine on a silver chainlet which gemmed her throat, a spring rain gift from me.

在这一页中间偏下的地方：,我的小情人穿着黑白条子的棉布裙，带着鲜艳的蓝色帽子，白袜子和亮皮鞋与她脖子上那条优美的,蓝宝石项链有些不协调,这是由于那场春雨我送给她的礼物。

耶鲁公开课 - 1945年后的美国小说课程节选

Silver was S with a circle.

银是S加上一个圈。

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