mechanism of change

例句：

1. 1. The mechanism of the machine is very simple.
   这台机器的机制非常简单。
2. 2.The discovery of this mechanism has revolutionized our understanding of the universe.
   这一发现颠覆了我们对宇宙的理解。
3. 3. The scientists have developed a new mechanism to improve the efficiency of the device.
   科学家们已经开发了一种新机制来提高该设备的工作效率。