previous screen

例句：

1. 1. The previousscreen displayed a message about the update.
   之前的屏幕显示了一条关于更新的消息。
2. 2.He quickly switched to the previous screen before starting the presentation.
   他在开始演讲之前迅速切换到了上一个屏幕。
3. 3. She navigated through the previous screens to find the information she needed.
   她通过上一个屏幕找到了她需要的信息。