betray

• 用于表示对某人或某事物不忠、背信弃义的行为，或无意中泄露信息、暴露真相。

A verb used to indicate the act of being disloyal to someone or something, or revealing information unintentionally.

1. B2formal

   To be disloyal to someone who trusts you, especially by helping their enemies or doing something harmful.

   背叛

   • He betrayed his country by selling secrets to the enemy.
   • She felt betrayed when her best friend lied to her.
   • The general betrayed his troops by surrendering without a fight.

   同义词deceivedouble crosssell out

   反义词aidassistdefendprotectstand bysupportuphold

2. Reveal unintentionallyB2formal

   To show or reveal something that should be kept hidden, often without meaning to.

   无意中暴露

   • His trembling hands betrayed his nervousness.
   • Her expression betrayed her true feelings about the news.
   • The slight hesitation in his voice betrayed his uncertainty.

   同义词discloseexposegive awayleakreveal

   反义词concealhidemasksuppress

3. Deceive or misleadB2formal

   To lead someone to believe something false, especially for personal gain.

   欺骗或误导

   • The con artist betrayed the elderly couple's trust.
   • He betrayed his promise to help her with the project.
   • The politician betrayed the voters' expectations by changing his stance.

   同义词beguiledeceivedeludedouble crossdupefoolhoodwinkmisleadtrick