用盡心機 yòng jìn xīn jī

DEFINITIONS

  1. to tax one's ingenuity

CHARACTERS

用 yòng
HSK 3
use, employ, apply, operate; use
盡 jìn exhaust, use up; deplete
心 xīn
HSK 3
heart; mind, intelligence; soul
機 jī machine; moment, chance