英语语法分析

That voice belonged to a man named Reginald Fessenden. He had been working on producing a device that could transmit the human voice or music using radio.

这是一个名叫雷金纳德·费森登的男人的声音，他已经在致力于生产一种能够用无线电波传送人类声音或音乐的设备。