manufacture 一般指机器大量制造的产品。
produce 多指农产品(尤指蔬菜水果等)。
product 一般指工业产品，也可泛指各种各样的产品。
product ion含义广泛，不同场合有不同的意思，可表示“产品，产物”，尤指人类智力或艺术劳动的产品。
参考例句
1. But they have their own production factory. 但是却拥有自己的生产工厂。
2. It will be a unique production as we invite only spinners with unique style. 我们用独特的风格只邀请旋转器，这将是一种独特的产品。
3. Enterprises should always know the quality of the production site, the system of quality development in order to effectively prevent accidents. 企业要经常了解生产现场的质量现状，系统地分析质量发展动态，以便有效地预防事故。
英英解释
n.
1. (economics) manufacturing or mining or growing something (usually in large quantities) for sale
2. a presentation for the stage or screen or radio or television
3. the act or process of producing something
4. an artifact that has been created by someone or some process
5. (law) the act of exhibiting in a court of law
6. the quantity of something (as a commodity) that is created (usually within a given period of time)
7. a display that is exaggerated or unduly complicated
8. the creation of value or wealth by producing goods and services
