Benjamin Franklin, inventor of the lightning conductor and co-author of the American Declaration of Independence, was an early practitioner. In 1772, he wrote.

避雷针发明者、美国独立宣言的作者之一，本杰明·富兰克林就是一较早实践者。1772年，他写道。

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Benjamin Franklin, inventor of the lightning conductor and co-author of the American Declaration of Independence, was an early practitioner. In 1772, he wrote.

避雷针发明者、美国独立宣言的作者之一，本杰明·富兰克林就是一较早实践者。1772年，他写道。

youdao