Obviously, global variables could do the same job, but they cause the familiar problems with pollution of the global namespace, and allow mistakes due to non-locality.

显而易见，全局变量可以做同样的工作，但它们带来了大家熟知的全局性名称空间污染的问题，并会因非局部性而引起错误。

youdao

Our attitudes allow us to turn mistakes into opportunities, and loss into the chance for new beginnings.

我们的态度可以让我们把错误变成机会，把损失变成新的开始。

youdao

They plan everything for their children, make all the decisions for them, and do not allow them to explore on their own in case they make mistakes or get hurt.

他们为他们的孩子计划好一切，为他们做所有的决定，不让他们自己探索，以免他们犯错或受伤。

youdao

But you have to allow for mistakes, as long as these mistakes are part of an effort to do something differently.

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Third, we need to make sure the IRS is adequately staffed with competent and skilled employees in local offices who won't allow these kinds of mistakes to be repeated.

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But as Commander-in-Chief, I will not allow us to make the mistakes of the past.

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