Addison invented the electric light bulb, the record player and the movie projector.
Addison invented the electric light bulb, the record player and the movie projector.
爱迪生发明了电灯泡、留声机和电影放映机。
Addison invented the electric light bulb, the record player and the movie projector.
爱迪生发明了电灯泡、留声机和电影放映机。