unimodal function

例句：

1. 1. The companyuses a unimodal approach to its marketingstrategy.
   该公司采用一种单一的营销策略。
2. 2. Thedata is unimodal in nature and canbe easily processed.
   数据是单模式的，并且可以很容易地处理。
3. 3. The softwaresupports a unimodal interface for easy navigation.
   该软件支持单模式界面，便于导航。