At their core, wave patterns are simple; there are only two of them: "impulse waves," and "corrective waves."

其核心很简单，只有两种模式，驱动浪和调整浪。

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Corrective waves accomplish only a partial retracement, or "correction," of the progress achieved by any preceding impulse wave.

调整波只能纠正前面推动波的一部分。

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