betray

/bɪˈtreɪ/

reveal unintentionally

中文释义：泄露；暴露

His trembling hands betrayed his nervousness during the speech.

他颤抖的双手暴露了他在演讲时的紧张。

The expression on her face betrayed her true feelings about the decision.

她脸上的表情泄露了她对这个决定的真实感受。