byproduct

例句：

1. 1. The factory produces a large number of byproducts from the raw materials.
   这个工厂从原材料中生产了大量的副产品。
2. 2. Byproducts are often discarded without being used.
   副产品通常在没有被使用的情况下被丢弃。
3. 3. The company is committed to reducing its byproduct emissions.
   该公司致力于减少其副产品排放。