1 a. if something might happen or might be true, there is a possibility that it may happen or may be true, but you are not at all certain b. used as the past tense of ‘may’ when reporting that someone talked or thought about the possibility of something c. used to say that something was a possibility in the past but did not actually happen 〔表示过去可能会发生但实际没有发生〕
POSSIBILITY
可能性
10 used to say that even though something is perhaps true, something different or opposite is also true 虽然,也许〔表示尽管某事或许是事实,但与其不同或相反的事也是事实〕
ALTHOUGH
虽然