不准你动他一根毫毛。

Don't you dare do him the slightest harm!

《新英汉大辞典》

但是他们知道我不会动他们一根毫毛。

But they knew I would not harm a hair on their heads.

youdao

不许你动我女儿一根毫毛。

You shall not put a finger on my daughter.

youdao

如果你敢碰我的女朋友一根毫毛，我宰了你。

If you lay a finger on my girlfriend, I will kill you.

youdao

如果你敢碰我的女朋友一根毫毛，我宰了你。

If you lay a finger on my girlfriend, I will kill you.

youdao