Senses
劳心/ 勞心 to work with one's mind
To engage in mental labor or work with one's brains, often used in contrast with 劳力 .
劳心/ 勞心 to tax one's mind
To put in great mental effort or go to a lot of trouble to get something done; to rack one's brains.
劳心/ 勞心 to worry
To be anxious or concerned about something; to feel troubled.