two-level recording

例句：

1. 1. The company uses two-level recording to improve its efficiency.
   该公司使用两级记录来提高其效率。
2. 2. This new software has a two-level recording feature that helps users organize their data.
   这款新软件具有两级记录功能，帮助用户整理他们的数据。
3. 3. The two-level recording system is designed to provide a secure and reliable backup solution.
   两级记录系统旨在提供一种安全且可靠的备份解决方案。