世界上最先进的操作系统。

Mac OS X is the world's most advanced operating system.

youdao

还要确保你熟悉如何核心工程和总体设计先进的操作系统。

Also make sure you're well acquainted with how the kernel works and advanced OS designs in general.

youdao

我们有世界上最先进的操作系统平台（喔...） 他就叫做Mac OS X。

We have the most advanced platform in the world in the form of OS X.

youdao