It's free software with a liberal open source license.

它是自由软件，有一个自由的开放源码许可。

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"Free software" and "open source software" can be used interchangeably for the purpose of this article, but "FLOSS" is preferred since it embraces both terms.

“自由软件”和“开放源码软件”可在本文中互换使用，但是推荐使用“FLOSS”，因为它包含了这两个术语。

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It gives people all over the world the opportunity to interact with and chat with existing Free and Open Source Software users and explore and find out more about Free and Open Source Software.

它给世界各地的人们互相交流的机会，和现有自由与开源软件用户闲谈，探索与发现更多的自由与开源软件。

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But thankfully now in 2010, we're at the point where there's a whole lot of free and open source software that you can integrate into your projects that other nice people have made available.

不过幸好在2010年,现在有很多可用的开源,代码软件，你可以将其融合,到你的工程中。

哈佛公开课 - 计算机科学课程节选

Free and Open Source Software (FOSS) is liberally licensed software that grants users the right to use, study, adapt and distribute its design through the availability of its source code.

UNESCO: MEDIA SERVICES

The project consists of assembling and readapting a package of high quality free open source software in three languages (Arabic, French and English) and disseminating it in Arab countries on USB keys.

UNESCO: Listserv to create FOSS community in Maghreb

The Platform was developed with a Free and Open Source Software (FOSS) framework by the University of Witwatersrand, South Africa within the Africa Virtual Open Initiatives and Resources (AVOIR) Consortium comprising of 11 African universities.

UNESCO: MEDIA SERVICES