He didn't stop there-edison went on to design an electric power distribution system that would make the use of light bulbs practical and profitable.
他没有停止。他设计出一种电力分配系统，可以让电灯泡实用并且盈利。
He didn't stop there-edison went on to design an electric power distribution system that would make the use of light bulbs practical and profitable.
他没有停止。他设计出一种电力分配系统，可以让电灯泡实用并且盈利。
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