劳心苦思

劳心苦思
láoxīn

to rack one's brains

2 meanings
MEANING2 meanings

MEANING

  1. verb

    to rack one's brains

    • He racked his brains thinking hard about this problem.

  2. verb

    to think hard

    • He racked his brains with great effort and finally found a solution.

STROKE ORDER
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