一旦找到产品密钥，如果希望返回上一屏幕重新输入产品密钥，请单击“重新输入产品密钥”选项。

Once you find it, click the 're-enter the product key' option, if you want to return to the previous page and re-enter your product key.

youdao

屏幕底部的四个物理按键在肖像模式下分别用于锁定屏幕、浏览、返回上一屏幕以及并返回主屏幕，但我很少使用。

I rarely used the four physical buttons at the bottom of the screen (in portrait mode) for locking the screen, browsing, returning to a previous screen, and returning to the home screen.

youdao

该组尝试用两台不同的放映机将地图投映在同一屏幕上。

The team tried projecting the maps with two different projectors onto the same screen.

《柯林斯英汉双解大词典》

Up on the screen, I've got-- I commented it out, but I've got a piece of code that you've seen before, right up here. OK?

我现在在大屏幕上标出来的,是你们以前看过的一段代码,就在这儿？

麻省理工公开课 - 计算机科学及编程导论课程节选