n. 理由；理智；原因（reason的复数）

n a rational motive for a belief or action

n an explanation of the cause of some phenomenon

n the capacity for rational thought or inference or discrimination

n the state of having good sense and sound judgment

n a justification for something existing or happening

n a fact that logically justifies some premise or conclusion

v decide by reasoning; draw or come to a conclusion

v present reasons and arguments

v think logically