1. If done well, an abstraction becomes a creation. ——如果做得好的话，抽象就成为创造。
2. The creation of an instance of a class or object oriented abstraction. 抽象的类或者面向对象的一个实例创建的过程。
3. The fundamental ideas behind classes are data abstraction and encapsulation . 类背后蕴涵的基本思想是数据抽象和封装。
英英解释
n.
1. a concept or idea not associated with any specific instance
2. the act of withdrawing or removing something
3. the process of formulating general concepts by abstracting common properties of instances
4. an abstract painting
5. preoccupation with something to the exclusion of all else
6. a general concept formed by extracting common features from specific examples
