double leveling

例句：

1. 1. The company is implementing a double leveling strategy to improve its efficiency.
   该公司正在实施一个双重提升策略以提高其效率。
2. 2. The new policy aims to double the level of environmental protection.
   新政策旨在将环境保护水平提高一倍。
3. 3. The team has doubled their leveling efforts in recent months, resulting in significant progress.
   该团队在近几个月内加倍努力，取得了显著进展。