Things that go bump in the flight: a guide to aircraft noises
飛機上的「噪音指南」

From the steady hum (it’s not always the engines) to a ‘dog’ barking in cargo, here’s what those sounds mean
從持續不但的嗡嗡聲（並不總是引擎的聲音）到「狗」在貨物倉吠叫，這些聲音意味著什麼？