But if you have much of it, metal money is hard to carry around.

但是你有太多时，金属货币不方便带在身上。

youdao

Metal money was certainly better than salt or shell or stone money.

金属的货币当然要比盐或是贝壳的或是石头的货币好。

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Recyclers can make money from selling scavenged metal from electronic equipment, says Puckett, but the process to retrieve usable metals is typically extremely toxic.

Puckett说，回收商销售从电子设备中清除出的金属而从中获利，但是找出有用的金属的工艺过程是非常有害的。

youdao

Workers stand outside stores, ringing a bell and collecting money in a red metal kettle from shoppers passing by.

VOA: special.2009.11.02

Now,you will need a common nine-volt battery and a metal piece of money.

VOA: special.2010.12.08

With his money and scientific genius, he creates an almost indestructible, flying,metal suit of armor.

VOA: standard.2010.05.19

This problem explains why metal money has circulated not in lumps but as coins, with a regulated amount of metal in each coin.

ECONOMIST: Free exchange

It was state intervention, not the private market, that made metal specie work as money.

ECONOMIST: Free exchange

Interesting, too, is how often our love of horsepower and swooping sheet metal crops up when money doesn't matter.

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