详细解释:n. 打火石, 燧石, 极硬的东西
【化】 燧石
【医】 燧石
英语解释：
名词 flint:
a hard kind of stone; a form of silica more opaque than chalcedonya river in western Georgia that flows generally south to join the Chattahoochee River at the Florida border where they form the Apalachicola River同义词：Flint River