downloading

例句：

1. 1. I need to download the latest software update for my computer.
   我需要下载我的电脑的最新软件更新。
2. 2. The company has released a new version of its operating system for downloading.
   该公司已经发布了其操作系统的新版本，供下载。
3. 3. Students are required to download their textbooks before class starts.
   学生需要在上课前下载他们的教科书。