While knowing theories is important, we should put them into practice.

虽然了解理论很重要，但我们也应该把它们付诸实施。

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But knowing exactly how to practice is a little more difficult.

可是要真正知道如何操练却有点困难。

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But knowing exactly how to practice is a little more difficult.

可是要真正知道如何操练却有点困难。

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