许多人认为是托马斯·爱迪生发明了第一个实用的电灯泡。

Many credit Thomas Edison as the ___inventor of the first practical light bulb.

拉斯·马格努斯·爱立信被认为是早期移动电话的发明者。

Lars Magnus Ericsson is recognised as the ___inventor of the early mobile telephone.

一个成功的发明家不仅要有绝妙的想法，还要找到实现它的方法。

A successful ___inventor not only has a brilliant idea but also finds a way to make it work.