All that has been discovered, if it is a disturbance to nature, should be dropped.
所有的发现，如果它对自然造成扰乱，就该把它除掉。
Scientists soon discovered that it could be used as a cure for cancer.
科学家们很快就发现它可以被用来治疗癌症。
I discovered that if I want to be happy, it would be my own doing.
我发现如果我想要开心，那是我自己的事情。
It was a great day when he discovered that speech could be used for narrative.
当人类发现语言可以用来进行叙事时，那一定是个伟大的日子。
It was a great day when he discovered that speech could be used for narrative.
当人类发现语言可以用来进行叙事时，那一定是个伟大的日子。
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