1N-COUNT 副产品 A by-product is something which is produced during the manufacture or processing of another product. 副产品
The raw material for the tyre is a by-product of petrol refining. [+ of]
制造轮胎的原材料是提炼汽油时产生的一种副产品。
2N-COUNT 附带产生的结果 Something that is a by-product of an event or situation happens as a result of it, although it is usually not expected or planned. 附带产生的结果
A by-product of their meeting was the release of these fourteen men. [+ of]