这将由第三种方法来解决。

This is solved by the third method.

youdao

第三种方法是提供一种通用的功能，但采用的是关联而非继承。

The third alternative is to provide a common capability, but using associations instead of inheritance.

youdao

这一部分介绍第二和第三种方法。

This installment looks at the second and third approaches.

youdao

And the third possibility, is to do the expected case.

第三种方法，就是针对给出的例子。

麻省理工公开课 - 计算机科学及编程导论课程节选