1.出卖，泄漏
2.辜负
3.背叛（原则或信仰）
4.泄露信息，流露情感 词形变化
- 名称 betrayer，betrayal
- 时态 betrayed，betraying，betrays
- reveal unintentionally
- disappoint, prove undependable to; abandon, forsake
- deliver to an enemy by treachery
- cause someone to believe an untruth
- be sexually unfaithful to one‘s partner in marriage
- give away information about somebody