In 1931 they dropped convertibility of the pound sterling still called pound sterling even though it's not silver it was gold.

在1931年，他们放弃了英镑的可兑换性,仍然叫做英镑的话,即便它不是银，而是金。

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It's not the silver bullet that antibiotics are, but it has its advantages as it works well on chronic infections.

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"Facebook is one piece of the puzzle, but it's not a silver bullet, " he said.

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What all this shows is that despite Paulson's efforts to shoot a silver bullet into the heart of the financial market turmoil, it's difficult if not impossible to succeed when the target is zigzagging as much as it is.

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