So, if something cycles through five wavelengths in a single second, we would just say that the frequency of that wave is five per second.

如果一个东西在一秒,内经历了五个波长，我们就说这个波的,频率是每秒5次。

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Here, in one second, it seems to have gone much further, so it's probably traveling faster.

在这一秒内,它似乎运动了更远的距离,所以这段时间它可能运动得更快

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For example, here, in one second it went from here to here.

例如,在一秒内它从这儿运动到这儿

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