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一个多世纪前一个德国工程师鲁道夫·狄赛尔说:我要用动力改变世界。后来,他发明了柴油机,为人类带来福祉。
Rudolf Diesel, a German engineer more than a century ago, said: I want to change the world with motivation. Later, he invented the diesel engine, bringing happiness to mankind.