Unfortunately, when many of these systems pass, their operating systems pass along with them.

遗憾的是，当许多这样的系统消失时，其中的操作系统也随之消失。

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Second, the systems cannot pass curves.

其次，系统无法通过曲线。

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Second, the systems cannot pass curves.

其次，系统无法通过曲线。

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