About 2,000 years ago,Wang Chong,a Chinese philosopher,discovered that it one rubbed a piece of amber with a piece of fur or wood,he could always produce electricity.
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- 大约2,000年前,中国的一位哲学家王充发现,如果把一块琥珀在一块兽皮上或木头上摩擦,随时都能产生电。