1. Well, we can start a fire, Matt said. But there one problem. We need a piece of flint. 那样的话，我们可以燃起一把火。马特说，但有一个问题，我们需要一块打火石。
2. The finest vineyards are found on well-draining gravel, where quartz and flint pebbles lie over a subsoil of marl. 最好的葡萄园处于排水良好的砾石带，在那里石英和燧石平铺在泥灰的下层土之上。
3. Fortunately, however, ancient men made tools of stone, especially flint, because this is easier to shape than other kinds. 然而，幸运的是，远古人用制作石器，非凡是燧石器，因为燧石比其他石头更易成形。
英英解释
n.
1. a hard kind of stone; a form of silica more opaque than chalcedony
2. a river in western Georgia that flows generally south to join the Chattahoochee River at the Florida
3. a city in southeast central Michigan near Detroit; automobile manufacturing
