在除夕，3000人参观了位于门洛帕克的实验室，去见证40个充满活力的发光电灯泡。
On New Year's Eve, 3,000 people visited the lab in Menlo Park to witness 40 electric light bulbs glowing merrily.
爱迪生在新泽西的门洛帕克建立了自己的实验室，他雇佣了机械工和化学师帮忙，他没日没夜地工作。
Edison started his own laboratory at Menlo Park, New Jersey. He hired mechanics and chemists to help him.
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