It was originally made by the Dopyera Brothers, who later on made the Dobro, which is a wood-bodied instrument with a metal cone for -- where the sound comes from.
这是最初是由多普耶拉兄弟制造的， 他们在之后制作了冬不拉，一种木制琴身的乐器 有一个金属锥-声音就是从那儿发出的。