燧石

gǔ rén shǐ yòng suì shí gōng jù

古人使用燧石工具。

People in early times used flint tools.

suì shí zài yā lì zuò yòng zhī xià suì chéng le xiǎo kuài

燧石在压力作用之下碎成了小块。

Under the pressure, the flint crumbled into fragments.

yìn dì ān rén huì záo zhì suì shí jiàn tóu

印第安人会凿制燧石箭头。

The Indians could chip flint arrowhead.

zhè shì yī dòng yòng huī sè suì shí qì chéng de jiào qū jiào táng

这是一栋用灰色燧石砌成的教区教堂。

This is a grey flint parish church.