石油是一种全球交易的商品，其价格影响着全世界的经济。

Oil is a globally traded ___commodity whose price affects economies worldwide.

该国最有价值的商品包括大豆和玉米等农产品。

The country's most valuable ___commodities include agricultural products like soybeans and corn.

在危机时期，就连清洁水也可能成为一种稀缺且珍贵的商品。

In times of crisis, even clean water can become a scarce and precious ___commodity.