as hard as nails
US /æz hɑrd æz neɪlz/
UK /æz hɑːd æz neɪlz/
成語
非常強硬, 冷酷無情, 鐵石心腸
very tough, unsentimental, and ruthless
範例:
•
She's a businesswoman who's as hard as nails when it comes to negotiations.
她是個女商人，在談判時非常強硬。
•
Despite her gentle appearance, she's as hard as nails when she needs to be.
儘管她外表溫柔，但必要時她會非常強硬。