必然事件 [数] certain event
sure event
- 几率为1表示必然事件。
A probability of 1 represents certainty. - 火灾对建筑是偶然事件,对城市则是必然事件。
Fire is an accident to a building, while it is a necessity to a city. - 向孩子们展示必然事件的独立性或是解释一个事件和另一个事件的关系,帮助孩子们更好的理解他们听到的东西。
Showing that certain events are isolated or explaining how one event relates to another helps kids make better sense of what they hear.