And I've already given you some clues about this, in that this process of vaccination that Jenner had developed was intentionally injecting into healthy patients, a microorganism.
我刚刚已经向你们提示了一些,在詹纳发明的接种过程里,故意把微生物注射到健康病人身上
He extended it and developed it into a theory of psychosexual development.
他在此基础上扩展并提出了,性心理发展理论。
Two is it gives you some sense for how concerned parents were about the risks of polio in the community and how much they wanted a vaccine to be developed, such that they gave permission for their children to enter into this trial.
第二是,它能让你了解,父母们对孩子,罹患小儿麻痹症的风险的关心程度,以及对疫苗的渴望程度,这使得他们同意让他们的孩子,参与到这种实验中
They take this makeshift communication system developed by adults and, again, they turn it into a full-blown language, suggesting that to some extent it's part of our human nature to create languages.
他们继承了成人发展出来的临时交流系统,将这个临时交流系统,再次发展成一种成熟的语言,这表明从某种程度上来说,创造语言是我们人类本性的一部分
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