user costs

例句：

1. 1. The company's user costs are increasing due to the rise in demand for its products.
   由于对该公司产品需求的增加，公司用户成本正在上升。
2. 2.To reduce user costs, we need to optimize our software design.
   为了减少用户成本，我们需要优化我们的软件设计。
3. 3.The new product has lower user costs compared to its competitors.
   与竞争对手相比，这款新产品的用户成本更低。