在生态学中，原始协作是指两个物种相互作用，对双方都没有不利影响，或双方都可获得微利，但双方通常依赖性很强。
与前些年相比，这些提案最令人震惊的地方是它们都不需要原始文档作者的任何协作。
What was shocking about both these proposals, compared to earlier years, was that neither required any effort by or even cooperation from the original document authors.
另外，原始输入消息可以返回给协作。
Otherwise the original input message could be returned to the collaboration.
Xen 是一个开源的超虚拟化解决方案，它虽然需要对客户操作系统进行修改，但可以通过与 hypervisor 的协作获得接近原始系统的性能。
Xen is an open source paravirtualization solution that requires modifications to the guest operating systems but achieves near native performance by collaborating with the hypervisor.
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