internal product

例句：

1. 1. The company's internal product line has expanded significantly in recent years.
   该公司近年来内部产品线有了显著的扩展。
2. 2.The research team discovered a new internal product that could revolutionize the industry.
   研究团队发现了一种新的内部产品，可能会颠覆整个行业。
3. 3.The company is investing heavily in developing its internal product to stay competitive in the market.
   公司正在大力投资于开发其内部产品，以在市场上保持竞争力。