logic light

例句：

1. 1. The scientist used logicto prove his theory.
   科学家使用逻辑来证明他的理论。
2. 2. The decision was based onlogical reasoning.
   这个决定是基于逻辑推理的。
3. 3. The teacher explained the concept of logicin a clear and concise manner.
   老师以清晰和简洁的方式解释了逻辑的概念。