sod’s law

例句：

1. 1. The sod's law of ecology states that the population tends to grow exponentially with each generation.
   生态学中的sod's law指出，人口每代都会以指数形式增长。
2. 2. The sod's law of economics suggests that the rate of technological progress is directly proportional to the level of education.
   经济中的sod's law表明，技术进步的速度与教育水平成正比。
3. 3. The sod's law of physics explains why objects in motion tend to stay in motion,regardless of their initial velocity.
   物理学中的sod's law解释了为什么物体在运动时会保持运动状态，不论其初始速度如何。