not bat an eye
毫不在意或露出任何情感或反应
口语·形容冷静或漠不关心
英文释义
show no reaction or emotion, especially in a situation where one might be expected to
例句
She didn't bat an eye when he told her the bad news.
典故来源
源自眨眼反射，19世纪美国俚语，指面对刺激时毫无反应。