commodity中等

Caravanserais were also an important marketplace for commodities and [aided] in the trade of goods along the Silk Road.

商队客栈也是重要的商品交易市场，促进了丝绸之路沿线的货物贸易。

commodities

商品

It was a year before she became head of a tiny Internet-based commodities exchange.

一年后，她才成为一家小型网上商品交易所的负责人。