A presumption is something that is accepted as true but is not certain to be true. 假定
noun [抽象名词] 推测，设想；（法律上的）假定，推定；放肆，冒昧
There is a general presumption that the doctor knows best. 一般人都以为医生最了解情况。
后缀: tion
【noun】 表示某种行为、状态或结果 - indicating an action, process, or result
原词: presumption
是通过后缀 【tion】 构成的派生词
