It is no surprise that the best tools for the job are open source ones.

对于这种工作来说，最好的工具是开源工具，这并不奇怪。

youdao

The community edition is open source and comes with no official support.

社区版是开源的，没有任何官方的支持。

youdao

Unfortunately, Khepera evolved into commercial software and is no longer open source.

不幸的是，Khepera已经变成了一个商业软件，而不再是开源的了。

youdao

Unfortunately, Khepera evolved into commercial software and is no longer open source.

不幸的是，Khepera已经变成了一个商业软件，而不再是开源的了。

youdao