choose sources of supply

例句：

1. 1.We need to choose the best sources of supply for our project.
   我们需要为我们的工程选择最好的供应来源。
2. 2. The company has chosen several suppliers for their products.
   该公司已为其产品选择了几家供应商。
3. 3.They decided to choose a different supplier for their new product line.
   他们决定为他们的新产品线选择不同的供应商。