There's historical scholarship that used to argue that a couple of generations ago, but not anymore.

几代以前有些历史学者曾经持这种观点,但现在没有了

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because Manchester used to be industrial place in old times.

因为在以前，曼彻斯特曾经是工业区。

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I used to live in London, so I've been before.

我曾经住在伦敦，所以，我以前来过。

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I have a couple of times in my life, though.

我以前也曾经给过他们钱。

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