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
lì
to drip
to strain or filter
a trickle
pī gān lì dǎn
lit. to open one's liver and drip gall (idiom); wholehearted loyalty
lì qīng yóu kuàng
pitchblende (uranium ore)
pōu gān lì dǎn
to be completely honest and sincere (idiom)
lì chén bǐ jiàn
to state one's humble opinion (idiom)