Unlike most other Mach-based operating systems, such as GNU HURD (which, contrary to popular belief, does exist), XNU implements UNIX system calls in the same way as a BSD system.
不同于大部分基于Mach的操作系统，比如GNU HURD（与人们以为的恰恰相反，它的确存在），XNU采用与BSD系统相同的方式来实行UNIX系统调用。
As of 2005, Hurd is in slow development, and is now the official kernel of the GNU system.
截至2005年，赫德是在发展缓慢，现在的GNU系统正式内核。
As of 2005, Hurd is in slow development, and is now the official kernel of the GNU system.
截至2005年，赫德是在发展缓慢，现在的GNU系统正式内核。
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