請君入甕的英文：
[Literal Meaning]
invite/you/enter/urn
Please step into the vat
[解釋]
用某人對付別人的.辦法來對付他自己。
[Explanation]
to treat somebody with the way he has devised against others
[例子]
既然對手用誹謗這種卑鄙的方法來對待我們，那麼請君入甕，我們給他們造造謠。
[Example]
Since they used the mean method of slandering on us， let's treat them with the way they have devised against us and speak evil of them too。
[英文等價詞]
Come into my parlor， said the spider to the fly。
參考例句：
To make a person suffer from his own scheme
