electric spark短语⁹⁰⁸⁸⁷⁺⁷ 基本例句 电火花 工艺工序 Benjamin Franklin wondered about lightning He combined his curiosity with imagination and carried out his well-known experiment to show that lightning and an electric spark are the same thing. 本杰明•富兰克林不明白闪电是怎么回事。他把这种好奇加上了自己的想像,进行了那个著名的实验,证明了闪电与电火花是一个原理。 ebigear