fastidious

他对数据输入极其挑剔，从不允许任何错误。

He is ___fastidious about data entry and never allows any mistakes.

她对食物的挑选非常挑剔，连最轻微的瑕疵都无法接受。

She is so ___fastidious about food that even the slightest imperfection is unacceptable.