tiě shí xīn cháng
to have a heart of stone
hard-hearted; unfeeling
铁
tiě
iron (metal)
石
shí
abbr. for Shijiazhuang 石家莊|石家庄[Shi2 jia1 zhuang1], the capital of Hebei
心
xīn
heart
肠
cháng
intestines
