如果放弃动物研究将意味着我们不能够学习到什么，那就这样吧…我们并没有基本权利…去不被我们血脉所继承的自然病害所伤害到。
If abandoning animal research means that there are some things we cannot learn, then so be it... we have no basic right... not to be harmed by those natural diseases we are heir to.
也就是，一个“顾客”是“一种”用户，一个PA也是“一种”用户，从表面上看来这很自然地适合反映那些关系的继承层次结构的类型。
That is, a Customer "is-a-kind-of" user and a PA "is-a-kind-of" user, which on the surface seems like a natural fit for the type of inheritance hierarchy that reflects those relationships.
他的研究小组及其继承人这里和在欧洲进行的常识方式：自然语言，他们觉得，是一个词汇了(一组字)和语法(一套规则)。
His team and its successors here and in Europe proceeded in a commonsensical way: a natural language, they reckoned, is made of a lexicon (a set of words) and a grammar (a set of rules).
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