give someone a dose of his own medicine

• 以其人之道；还治其人之身

give someone a dose of his own medicine的用法和样例：

例句

1. Give him a taste of his own medicine.
   以其人之道，还治其人之身。
2. Deal with a man as he deals with you.
   以其人之道，还治其人之身。
3. Give him a taste of his own medicine.
   以其人之道，还治其人之身。
4. Deal with a man as he deals with you.
   以其人之道，还治其人之身。

词汇搭配

• give someone a dose of his own medicine 以其人之道