名词 reason:

1. a rational motive for a belief or action

2. an explanation of the cause of some phenomenon

3. the capacity for rational thought or inference or discrimination

4. the state of having good sense and sound judgment

5. a justification for something existing or happening

6. a fact that logically justifies some premise or conclusion

动词 reason:

1. decide by reasoning; draw or come to a conclusion

2. present reasons and arguments

3. think logically

reasonn.原因；理由；理智；理性v.理论；论证；推理；劝说reasonablity合理性reason about推出reason logic事理逻辑reason power原因力reason lie in理由在于 ...reason behind... 真正的(背后的)理由reason of law法的理性reason out ofv.劝说 ... 排除reason machine推理机reason against反对 ... 的理由

1. These are the reasons why we do it.
   这些就是我们为什么要做这事的理由。
2. He listened as I outlined my reasons.
   他听我扼要地叙述了我的理由。