毫无疑问,他是个铁石心肠的家伙
There is no doubt that he is a man with a heart of stone
stone 英[stəʊn] 美[stoʊn]
n. 石头; 宝石; 矿石; (膀胱或肾脏中的) 结石;
vt. 向扔石块; 用石头铺; 以石掷向; 除(水果的)硬核;
adj. 石制的; 石头似的; [S-] 石器时代的; 粗陶制的;
There is no doubt that he is a unfeeling man .