Animals are able to hear high-pitched sounds that are inaudible to humans.动物可以听到人类所听不到的高频声音。His weak voice was almost inaudible.他的声音微弱，几乎听不见。She whimpered something inaudible.她呜咽着说了些什么，听不清。...
His weak voice was almost inaudible.他的声音微弱，几乎听不见。inaudible sounds听不见的声音She whimpered something inaudible.她呜咽着说了些什么，听不清。His voice was almost inaudible.几乎听不见他的声音。His weak voice was almost inaudible...他的声音微弱，几乎听不见。His voice...