He threw the paper money in the fire.

他把纸钱扔到火里。

You could buy nothing with your paper money.

你可以购买任何与您的纸钱。

But even when paper money came in the habit continued.

但即便在纸币问世后，这一习惯仍然保留了下来。

Gold was heavy and cumbersome compared with paper money.

因为黄金和纸质货币比起来又笨又重。

I regard it unreasonable to burn "paper money" on tomb-sweeping day.

我认为清明节时“烧纸钱”是不合理的。