n.打火石；極硬的東西
It is possible to strike fire from flint. 火石可以打火。
He has a heart of flint. 他有一副鐵石心腸。
She gave him a look as hard as flint. 她冷酷地瞪他一眼。
n.燧石(打火石)
n.吝嗇鬼
n.燧石發(fā)火裝置；燧發(fā)槍
adj.燧石的；堅硬的；固執(zhí)的
