这是一个手机屏幕保护软件，能够显示透镜效果！

This mobile screensaver can show a lens effect.

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你可以下载这款免费的屏幕保护软件并且欣赏奇妙的瀑布，平静的大海和快速流动的山川河流。

You can download the screensaver for FREE and enjoy amazing waterfalls, calm oceans and fast mountain rivers.

youdao

现在有很多自由且开放源码的软件可以把 Linux 作为一个 Windows 屏幕保护程序来安装并运行。

There is sufficient free and open source software available nowadays to enable Linux to install and run as a Windows screensaver.

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