They were an easily found and plentifully available food source in farming areas, especially for poor immigrants.

在农业地区，特别是对贫穷的移民来说，它们是一种很容易找到的、丰富的食物来源。

youdao

Both are open source and available from github.

它们都是开放源码的，可以从github获得它们。

youdao

There are both commercial and open source licenses available for this project.

这个项目有商用和开放源码两种许可证。

youdao

It is also making the Windows source-code available to governments for scrutiny.

ECONOMIST: Software

So sometimes, instead, they use open-source alternatives available for free on the internet.

FORBES: Goldman 'spy' trial tests trade-secret limits

Open-source video-editing tools and publicly available sounds have made the creation of educational materials virtually cost-free but that doesn't mean that eco-blogging is safe.

ECONOMIST: The environment and people power