(a) [U] betraying or being betrayed 背叛或被出卖
*an act of betrayal 背叛的 行为.
(b) [C] instance of this 背叛
*a betrayal of trust 对信任的辜负.
n [U and C]
when you betray your country, friends, or someone who trusts you
a ruthless betrayal of their election pledges
She felt a great sense of betrayal .
1. The plan failed because of his betrayal. 由于他的背叛计划失败了。