Speaking of the world market, it cannot be said that WTO has changed the world economy. Since there has been trade, there has been a world market. The formation of the world market is a symbol of world economic integration. Someone once proposed an international currency, which was realized in the European Union. The euro is a symbol, while the dollar is only a form of international currency, and it can't be regarded as an international currency. This is the embodiment of the economic strength of all countries. The world market is uncertain, and it is inseparable from the world economy. Therefore, it is said that.