美国的爱迪生发明灯泡 Edison invented the light bulb U.S
爱迪生发明了灯泡 Edison invented the manufacturers produced and the inhabitants used the light bulb
托马斯·爱迪生发明灯泡的时候，他做了2000次多的实验才成功。
When Thomas Edison invented the light bulb, he tried over 2,000 experiments before he got it to work.
人们经常会举爱迪生发明灯泡的例子，在他试验了上千种材料后终于找到了一种合适的材料发明了白炽灯。
An example he frequently USES is when Thomas Edison tested thousands of materials before he discovered the right one for his incandescent lamp.
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