theory of unemployment

例句：

1. 1. The theory of evolution suggests that allliving things have descended from a commonancestor.
   进化论认为所有生命都起源于一个共同的祖先。
2. 2. Thetheory of relativity proposed by Einstein revolutionized our understanding of space andtime.
   爱因斯坦提出的相对论彻底改变了我们对时间和空间的理解。
3. 3. The theory of quantum mechanicshas been tested in experiments with atoms andsubatomic particles.
   量子力学的理论已经在原子和亚原子粒子的实验中得到验证。