1·Now, language is not the only thing in culture or nature that has this sort of combinatorial system.
语言并不是在文化或自然中，唯一拥有这种组合系统的事物。
2·DNA also has this sort of combinatorial system where you have a finite number of, I guess, bases or amino acids that could combine to a possible infinity of strings of DNA strings.
脱氧核糖核酸也拥有这种组合系统，你的生物基础或氨基酸数量是有限的，但却能组合出，几乎无限的脱氧核糖核酸螺旋结构。
3·And the answer is you have a combinatorial system.
答案便是，你有一个组合系统。
4·The pigeonhole principle is a powerful tool used in combinatorial math. But the idea is simple and can be explained by the following peculiar problem.
鸽子洞原理是分析数学组合的有力工具。但是其概念简单，可以通过以下具体的问题加以阐述。
5·In particular, each existing shape class has to add capabilities in a descendent, which runs into combinatorial complexities and difficulties in maintenance.
特别是，每个现有的形状类必须在子代类中添加功能，这使维护工作陷入了组合的复杂性和困难当中。