Clear off, before I do you some harm.快走开，否则我就不客气了。

今天的几个句子还是有关表达威胁的：1. I'll be back to you. 我会找你算账的。2. Mark my words! 你听着！ 3. You'll have to pay for that. 你必须为此付出代价！4. If you not quiet, you'll be punished. 如果你在不安静，就会受到惩罚。