not hurt a fly
US /nɑt hɜrt ə flaɪ/
UK /nɑt hɜrt ə flaɪ/
1.
连一只苍蝇都不会伤害, 温顺无害
to be gentle and harmless; to be incapable of causing harm to anyone or anything
:
•
Despite his tough appearance, he wouldn't hurt a fly.
尽管他外表强硬，但他连一只苍蝇都不会伤害。
•
My grandmother is so sweet; she wouldn't hurt a fly.
我奶奶很和蔼；她连一只苍蝇都不会伤害。