betray to be not loyal to your country or a person who believes you are loyal to them, often by doing sth. that hurts them  Some lawmakers say they feel betrayed by the president. 一些法律制定者说他们感觉被总统出卖了。 He would rather die than betray his country to the enemy. 他宁愿死也不愿向敌人出卖自己的祖国。

vt. 出卖，背叛