Watch: What leaked audio reveals about Spain train crashLeaked audio recordings published by Spanish media have shed light on communications between a control centre and train drivers in the moments before two trains collided outside Toledo.翻译结构俚语Officials are investigating the cause of the disaster, which occurred when a train from Madrid to Seville barrelled into a stationary train.Southern Europe correspondent Sarah Rainsford explains what the audio reveals.Read more on the leaked audio翻译结构俚语