铁石心肠 a heart of steel ; cruel and unrelenting ; Heart Of Stone ; Cold As Stone

时而铁石心肠 Nunc obdurat

铁石心肠的 hard-hearted ; ironhearted ; marblehearted

铁石心肠的欧律比亚 Eurybia

铁石心肠的男人 Men of stone

别把你铁石心肠隐藏 Metal heart you're not hiding

铁石心肠的公主 The Hard-Hearted Princess

我的铁石心肠 These Robotic Hearts of Mine

而且铁石心肠 their minds as cool decides

铁石心肠的杀手 stone-cold killer