DWL

例句：

1. 1. The digital whiteboard is a great tool for teaching and learning.
   数字白板是教学和学习的好工具。
2. 2. The data warehouse level is crucial for analyzing large amounts of data.
   数据仓库级别对于分析大量数据至关重要。
3. 3. We need to upgrade our digital whiteboard to improve our productivity.
   我们需要升级我们的数字白板以提高我们的生产力。