"without batting an eye" in Chinese (Simplified)
面不改色
Definition
如果你面不改色地做某事，就是指你在不寻常或震惊的情况下也很平静，没有表现出惊讶、害怕或情绪波动。
Usage Notes (Chinese (Simplified))
这是口语表达，描述面对震惊或奇异情形时保持冷静、毫无表情。常搭配“说”、“做”、“应对”等动词。也可以说 '面不改色心不跳'。
Examples
She paid the expensive bill without batting an eye.
她**面不改色**地付了昂贵的账单。
He told the story without batting an eye.
他讲这个故事时**面不改色**。
Maria left her job without batting an eye.
玛丽亚**面不改色**地辞掉了工作。
He ate the whole chili pepper without batting an eye.
他**面不改色**地吃下了整根辣椒。
She handled the crisis without batting an eye and got everyone to safety.
她**面不改色**地处理了危机，让大家都安全了。
When I told him the truth, he just listened without batting an eye.
我跟他说实话时，他只是**面不改色**地听着。