该语言中的每个对象都是具有其自己的数据和函数的单独实体，可独立设置。

Each object in this language is its own individual entity with its own data and function that you can set independently.

youdao

所有经过转换以使用键的扩展仍然处于可识别键的和键不安全的函数的混合环境中。

Any extension converted to use keys is still in an environment with a mixture of key-aware and key-unsafe functions.

youdao

从而，在只是付出了一些指令的代价后，您的程序会拥有函数式程序的可证明性和命令式程序的速度和内存特性。

So, for the price of at most a few instructions, your program can have the provability of a functional program and the speed and memory characteristics of an imperative one.

youdao

Now Isaac Newton and/or Joseph Raphson figured out how to do this kind of thing for all differentiable functions.

既然牛顿和拉复生已经,指数了如何解这种可导函数,因此我们就不用太担心了。

麻省理工公开课 - 计算机科学及编程导论课程节选