人们都知道是爱迪生发明了电灯。
人所共知爱迪生发明了电灯。
众所周知，托马斯·爱迪生发明了电灯。
It is well known that Thomas Edison invented the electric lamp.
爱迪生发明了电灯。
电不是爱迪生发现的，但他发明了电灯。
Electricity was not discovered by Edison, but he invented the electric light.
电不是爱迪生发现的，但他发明了电灯。
Electricity was not discovered by Edison, but he invented the electric light.
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