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呕心沥血
嘔心瀝血
ǒuxīnlìxuè
1. lit. to spit out one's heart and spill blood (idiom)
2. to work one's heart out
3. blood, sweat and tears

Character Breakdown

呕
ǒu
to vomit; to annoy, to enrage
HSK 6 7 丶
心
xīn
heart; mind; soul
HSK 3 4 丶
沥
lì
trickle, drip, dregs; to strain
7 丶
血
xuè
blood
HSK 5 6 丶

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Category
Chinese