Like most open source programs, it's distributed in a compressed tarball, and you can transform it into a source tree using the command in Listing 4. If you downloaded a version other than 1.1.1.

与大部分开放源码程序一样，它是以一个压缩的tarball形式发布的，我们可以使用清单4给出的命令将其转换成源代码树。

youdao

To be sure, the upfront cost of proprietary software is higher (although open-source programs are not always free).

肯定地说，专属软件的先期费用更高(尽管开放源码程序并不总是免费的)。

youdao

Cost effective ways of digitizing AV materials and providing access were presented, such as using open source programs available on the web.

UNESCO: Education

Yet the popularity of open-source programs such as the Linux operating system continued to grow.

ECONOMIST: Computing

In the long run, Linux and other open-source programs could cause Mr Gates much grief.

ECONOMIST: Free software