cool as cucumber
非常冷静
口语·形容非常冷静沉着
英文释义
to remain calm and composed, especially in difficult situations
例句
He walked into the exam room cool as cucumber, ready for anything.
典故来源
源自18世纪英国，黄瓜内部温度比环境低，比喻人在压力下保持冷静。