chī xióng xīn bào zi dǎn
to eat bear heart and leopard gall (idiom)
to pluck up some courage
吃
chī
variant of 吃[chi1]
熊
xióng
bear
心
xīn
heart
豹
bào
leopard
子
zi
noun suffix, as in 椅子[yi3 zi5] "chair"
胆
dǎn
gall bladder