betray/bɪ'treɪ/

v. harm one's country or friends by telling people secrets

v. [T] 背叛；出卖：He betrayed his country for money. 他为了金钱背叛了国家。

◇[betray sb¹ to sb²] He betrayed his bother to the police. 他向警方供出了他的兄弟。

构词be- + tray

音组-ay/-eɪ/

away; betray; delay; gray; pray; spray; today