causation

例句：

1. 1. The accident was caused by a malfunctioning brake system.
   事故是由一个失灵的刹车系统引起的。
2. 2.The scientist's research provides a rationale for the development of new drugs.
   科学家的研究为新药物的开发提供了合理化的解释。
3. 3. The cause of the fire was determined to be a short circuit in the electrical wiring.
   火灾的原因被确定为电线短路。