Always for it is an outstanding freeware public domain software.

总来说是一款优秀免费软件。

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Software consists of commercial software, public domain software, shareware and free software in legal state.

按软件的法律形态来分，它可分为商业软件、公共软件、共享软件和自由软件。

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After five years, its source code would go into the public domain, and proprietary software developers would be able to include it in their programs. But what about the reverse case?

5年以后他的源代码将会进入公共领域公开，专有软件开发者将会使用这些源代码到他的程序里去。那么反过来会怎么样呢？

youdao

After five years, its source code would go into the public domain, and proprietary software developers would be able to include it in their programs. But what about the reverse case?

5年以后他的源代码将会进入公共领域公开，专有软件开发者将会使用这些源代码到他的程序里去。那么反过来会怎么样呢？

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