Leave me alone.

走开。

Get away from me!

离我远一点儿！

Get lost.

滚开！

Take a hike!

哪儿凉快哪儿歇着去吧。

Get the hell out of here!

滚开!

Stay/keep away from me.

离我远点。

Get out of here or I'll tan your hide.

滚开，否则我要揍你。

Buzz off, you nasty little child!

滚开,你这个讨厌的小鬼!

Don’t you dare come back again!

你敢再回来！