The exchange in Dalian, a port through which many commodities enter China, has become the biggest trading centre for iron ore in the world in less than two years.

作为商品进口的重要门户，大连港在不到两年成为世界最大铁矿石交易中心。

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Any restrictions will only serve to hit the centre of European commodity trading, the London Metal Exchange.

任何限制措施都仅会用来冲击欧洲大宗产品交易的中心——伦敦金属交易所。

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It is to be based in New York, with its chief servicing offshoot in London, the biggest foreign-exchange trading centre.

ECONOMIST: Foreign exchange

Any restrictions will only serve to hit the centre of European commodity trading, the London Metal Exchange.

ECONOMIST: Commodity speculators do more good than harm

Among the larger hubs, Frankfurt is an important centre for banking and derivatives trading through Eurex, a German-Swiss exchange, with significantly lower costs than London.

ECONOMIST: If you can't be the biggest, offer something special