心血xīnxuèTop 15000Meanings1. heart's blood2. expenditure (for some project)3. meticulous careCharacters used心heart血bloodExamples1我们wǒmen已经yǐjīng花huā了le五wǔ个gè月yuè的de心血xīnxuè在zài这zhè上面shàngmiàn了le。别bié这zhè时候shíhou搞砸gǎozá了le。We've been working on this for five months. Don't fuck it up now.