以眼还眼 yǐ yǎn huán yǎn

DEFINITIONS

  1. an eye for an eye (idiom); fig. to use the enemy's methods against him
  2. to give sb a taste of his own medicine

CHARACTERS

以 yǐ by means of; thereby, therefore; consider as; in order to
眼 yǎn eye; eyelet, hole, opening
还 huán still, yet, also, besides
眼 yǎn eye; eyelet, hole, opening