你只要把他们的免费软件下载到手机上然后从widgets中选一些出来。

You simply download their free software to your mobile and choose from a host of widgets.

youdao

网站内容包括免费在线视频、图片、免费软件下载和其它免费资源。

The site provides the free online video, pictures, free software and other free resources.

youdao

下面，你会发现所有的最好的免费软件下载和评论的最好的网站的集合。

Below, you will find a collection of best websites for all the best freeware downloads and reviews.

youdao

It's a little more involved on a PC but it's all free, the software you can download, and Linux in similar operating systems generally come with a compiler or you run a simple command to get it.

在PC机上有点复杂，但是它是免费的，你一般下载的软件，类似Linux的操作系统等等通常都需要,一个编译器，或者你可以运行一些简单的指令来获取。

哈佛公开课 - 计算机科学课程节选