Once you get the hang of things, the choice of the operating system will become transparent.
一旦你掌握了这些知识，操作系统的选择会变得透明。
It was rough going for quite a while, but once I started to get the hang of things I realized that I could work really quickly in vi.
学习过程不容易，花费了不少时间，但一旦掌握了其中的窍门，我发现，使用vi的确可以更快的做事情。
It was rough going for quite a while, but once I started to get the hang of things I realized that I could work really quickly in vi.
学习过程不容易，花费了不少时间，但一旦掌握了其中的窍门，我发现，使用vi的确可以更快的做事情。
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