... in the eighteenth century在十八世纪 conducted a number of experiments做了大量的实验 do an experiment做实验 ...
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Goethe conducted a number of experiments trying to figure out which colors corresponded to which emotions.
歌德做了很多实验，试图推断出哪种颜色对应哪种情绪。
Benjamin Franklin conducted a number of experiments in which he showed what electricity is.
本杰明·富兰克林做了大量试验，在这些实验中展示了什么是电。
Having conducted a number of experiments, Franklin wanted to show that lightning and electricity are the same.
做了大量实验之后，富兰克林想要表明闪电和电是一样的。
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