With the combined research of many brilliant programmers, the minimax game tree evolved to become the most major component of the chess program. 在许多卓越的程序员联合努力下，极大极小博弈树逐渐演化成国际象棋程序最主要的组成。
For instance, I know chimpanzees have demonstrated abstract thought.But baboons are on a whole different limb of the evolutionary tree. 举例来说吧，我知道黑猩猩能够进行抽象思维，但是狒狒在生物进化树形图中处于不同的支系。
