【中文版】

货币和商品是经济活动中不可缺少的两个方面，但它们之间有着明显的不同。

首先，货币是经济生活中的媒介，它充当着交换媒介、计价单位、价值储藏等角色。而商品则是用来交换的劳动产品，它具有一定的使用价值和交换价值。

其次，货币和商品在表现形式和本质上也存在差异。货币是一种债务，是人们之间的信用关系，而商品则是满足人们某种需要的物品或服务。

此外，货币和商品在流通和交易中也存在不同。货币是一种交易媒介，是交换的桥梁，而商品则是交换的对象。货币可以在不同的商品之间充当交换媒介，而商品则可以通过货币来交换。

最后，货币和商品在时间和空间上也有所不同。货币是一种价值符号，可以在不同的时间和空间中流通和交易，而商品则是在一定的时间和空间中存在的实物。

总之，货币和商品虽然都是经济活动中不可缺少的两个方面，但它们之间有着明显的不同。货币是经济生活中的媒介和价值符号，而商品则是用来交换的劳动产品。

【英文版】

Currency and commodities are indispensable in economic activities, but they are clearly different.

Firstly, currency is the medium of economic life, playing the roles of exchange medium, unit of account, and store of value. Commodities, on the other hand, are labor products meant for exchange, with a certain use value and exchange value.

Secondly, there are differences in form and essence between currency and commodities. Currency is a kind of debt and a credit relationship among people, while commodities are objects that satisfy people's needs, whether they are goods or services.

In addition, there are differences in circulation and transaction between currency and commodities. Currency is a medium of exchange, a bridge connecting different commodities, while commodities are the objects of exchange. Currency can act as an exchange medium between different commodities, while commodities can be exchanged through currency.

Finally, there are also differences in time and space between currency and commodities. Currency is a symbol of value that can circulate and trade in different times and spaces, while commodities are physical objects that exist in a certain time and space.

In short, although currency and commodities are indispensable in economic activities, they are clearly different. Currency is the medium of economic life and a symbol of value, while commodities are labor products meant for exchange.