心血

HSK 7-9

xīnxuè

efforts; hard work; blood sweat and tears

expenditure (for some project); meticulous care

他为了这个项目付出了心血。

Tā wèile zhège xiàngmù fùchū le xīnxuè.

He put his heart and soul into this project.

她对工作一丝不苟，真是用心良苦。

Tā duì gōngzuò yīsī bùgǒu, zhēn shì xīnyòng liángkǔ.

She is truly meticulous about her work.