即便我们的归纳证明不能依赖纯粹的推理，对于归纳法实用主义的论证尝试也会得以体现。
And the Pragmatic Justification of induction attempt have been made to show that even if we cannot justify relying on induction by pure reason.
虽然 PHP 的内部函数经常可以提供非常棒的实用方法，但有时它们不能按照我们期望的那样执行。
While oftentimes, the internal functions in PHP provide great utility, sometimes they don't do exactly what we want them to.
但是正电穴通过其中的容易程度依然低下不能实用。
But the ease with which holes could travel through it was still too low to be practical.
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