为自己加油

改进题：Gold being quite inconvenient to carry around for spending purposes, inevitably governments issued paper certificates that were pledged to be redeemable in gold metal.

译文：黄金非常不便于携带用于消费，因此政府会发行并保证可以兑换成金属的纸质证明书。

改进的译文：既然因为购物需要而携带黄金很不方便，各国政府就发行作为纸币发行的证书，保证这些证书可以兑现黄金。