upper-level low

例句：

1. 1. The company's upper-level management is responsible for the strategicdirection of the business.
   公司的高层管理负责业务的战略方向。
2. 2. The lower-level employees areresponsible for daily operations and customer service.
   基层员工负责日常运营和客户服务。
3. 3. In a competitivemarket, it's important to maintainan upper-level focus on innovation whilealso addressing the needs of the lower-level customers.
   在竞争激烈的市场中，重要的是既要关注创新的高层次需求，也要满足基层客户的需求。