On the downside, this also means duplicating some infrastructure of the kernel as well as adding a potentially large number of new system calls to provide all necessary functionality.

从底层来说，这也意味着要复制一些内核的基础设施，同时解决可能出现的大量新系统调用，从而提供所有必要的功能。

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We are not going to be duplicating the kind of system that they have in China where they are basically state-run banks giving money to state-run companies, and ignoring losses and ignoring bad management.

WHITEHOUSE: President Obama��s News Conference on the American Jobs Act