煞费苦心 (shà fèi kǔ xīn) | Meaning: to take a lot of trouble (idiom); painstaking | Chinese Idiom with Pinyin & Origin

to dig for thoughts (idiom); to search everything for an answer · to rack one's brains挖空心思wā kōng xīn si

painstaking effort · to take a lot of trouble · laborious at pains苦心kǔ xīn

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

to spare no effort (idiom); to do one's utmost尽心竭力jìn xīn jié lì

to rack one's brains for schemes (idiom) · to beat one's brains out费尽心机fèi jìn xīn jī

to take a lot of trouble (idiom); painstaking · at the cost of a lot of effort