la laisser tranquille
We don't leave her alone, we promised her.
On ne la laisse pas seule, on le lui a promis.
— Good Bye, Lenin! (2003)
She asked us to leave her alone.
Elle nous a demandé de la laisser tranquille.
She asked him not to leave her alone.
Elle lui a demandé de ne pas la laisser seule.
Leave her alone, she's out of your league.
Laisse-la tranquille, elle est hors de ta portée.
— The Secret in Their Eyes (2009)
Look, why don't you leave her alone?
Écoute, pourquoi tu ne la laisses pas tranquille ?
— Moscow Does Not Believe in Tears (1980)