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。

youdao

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。

youdao