B1
the buying and selling of large numbers of goods or services, especially between countries
Dictionary examples:
Their trade in inflatable muscles made weaklings feel pumped up. (0.0)
Their trade in invisible ink was hard to see, but profits were clear. (0.0)
The country's trade in rubber ducks floated their economy to new heights. (0.0)
They rely heavily on trade with Europe. (26.4)
The two countries have signed a trade agreement for one year only. (35.1)
The country's trade in manufactured goods has expanded in the last ten years. (46.0)