启动游戏，在主画面你必须设置屏幕滚动。

Start the game, and at the main screen you have to set the screen for scrolling.

youdao

禁止壁纸滚动选项。滚动屏幕时壁纸将保持显示其中央位置而不随屏幕滚动。

Option to disable wallpaper scrolling. This will keep your wallpaper centered at all times.

youdao

如果您在一个移动设备上测试它，您将注意到它的加载速度很快而且屏幕滚动很流畅。

If you test it on a mobile device, you'll notice that it loads quickly and scrolls smoothly.

youdao

And when I'm starting to write lots of lines of code, you know, it's frankly kind of useful to be able to see more on the screen at once without having to scroll.

当我开始写很多行代码的时候，你们懂的，这明显是有用的，当你可以在屏幕上看到更多的代码,而不用滚动屏幕。

哈佛公开课 - 计算机科学课程节选