Very few real-world problems can be solved exactly, so it's crucial for a scientist to learn how to make approximations.

现实问题里面，只有很少的一部分能够精确地求解。 一个科学家要懂得什么时候和怎么样作近似，这是至关重要的。

The Clinic Program at Harvey Mudd College, for example, involves students in solving real-world problems that have immediate commercial or scientific applications.

比如在哈维姆德学院正在进行的“临床计划”旨在让学生研究能够立即产生商业和科研应用的课题。

Such real-world Problems might involve the encryption of large amounts of military information, or they might inv0lve some combination of silicon and DNA computing.

此类现实世界中的问题可能会涉及大量军事信息的加密，或者关系到硅运算技术和DNA运算技术在某种程度上的结合。