中文词 · Chinese word
呕心沥血
ǒu xīn lì xuè — lit. to spit out one's heart and spill blood (idiom); to work one's heart out; blood, sweat and tears
中文词 · Chinese word
ǒu xīn lì xuè — lit. to spit out one's heart and spill blood (idiom); to work one's heart out; blood, sweat and tears