Anything above 20 kHz is inaudible to a human, with dogs able to detect sounds pitched up to 23 kHz.

人类听不到20千赫以上的声音，而狗可以察觉到高达23千赫的声音。

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These very high frequency sounds are inaudible to the human ear.

这些频率非常高的声音人耳是听不见的。

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Here sounds an inaudible will…of Love.

在这里奏响了无声的……爱之愿律。

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Here sounds an inaudible will…of Love.

在这里奏响了无声的……爱之愿律。

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