然后把注释去掉，然后再取消注释一遍。

And uncomment that, and uncomment it again.

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追踪：进入竞技场时不再取消追踪类型。

Tracking: Entering an arena no longer disables tracking types.

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在准备使用调试器时再取消这些行的注释。

You'll uncomment those lines when you're ready to use the debugger.

youdao

And uncomment that, and uncomment it again.

然后把注释去掉，然后再取消注释一遍。

麻省理工公开课 - 计算机科学及编程导论课程节选