贸易

例句：

1. 1. The company has been involved in many trades over the years.
   这家公司多年来涉足了许多行业。
2. 2. Trade is a complex process that involves both buying and selling goods or services.
   贸易是一个复杂的过程，涉及买卖商品或服务。
3. 3. The government is considering new trade agreements to boost economic growth.
   政府正在考虑新的贸易协定以促进经济增长。