名詞 probability:

1. a measure of how likely it is that some event will occur; a number expressing the ratio of favorable cases to the whole number of cases possible
   同義詞：chance
2. the quality of being probable; a probable event or the most probable event

1. Having disappeared for long, he has been kidnapped in all probability.
   他失蹤了這么久十之八九是被綁架了。
2. In all probability he's already left.
   大有希望的候選者、競(jìng)爭(zhēng)者等。
3. What are the probabilities?
   可能發(fā)生什么事？
4. The probability of a peace agreement being reached is zero.
   達(dá)成和平協(xié)定的概率是零。
5. There is a little probability of his success.
   他不大可能成功。

prob.a.bil.i.ty

n.（名詞）
【復(fù)數(shù)】 prob.a.bil.i.ties
The quality or condition of being probable; likelihood.
可能性，或然性：可能的性質(zhì)或狀況；可能性
A probable situation, condition, or event.
可能：可能出現(xiàn)的形勢(shì)、狀況或事件

The likelihood that a given event will occur:
可能性：某事發(fā)生的可能性：
例句：
a great probability of rain this evening.
今晚很可能下雨

Statistics A number expressing the likelihood that a specific event will occur, expressed as the ratio of the number of actual occurrences to the number of possible occurrences.
【統(tǒng)計(jì)學(xué)】 概率，幾率：表示某件特定的事發(fā)生的可能性數(shù)字，用實(shí)際發(fā)生的次數(shù)與可能發(fā)生的次數(shù)之比表示

<習(xí)慣用語(yǔ)>in all probability
Most probably; very likely.
極為可能地；很可能地